Popular Library has published a paper-back edition of "The Children of Pride," edited by Robert Manson Myers, in a three-volume set [$9.75]. Individual volumes of the National Book Award winner about the joys and sorrows of a Southern family just before and during the Civil War are also available [$3.25], their titles being, respectively, "Many Mansions," "The Edge of the Sword" and "The Night Season." Schocken Books has reprinted "Life and Writings of Amelia Bloomer," she having been a pioneer in the women's rights movement, with a new introduction by Susan J. Kleinberg [$3.95]. Vintage Books has brought out a mammoth one-volume edition of Robert A. Caro's comprehensive and controversial account of the empire that Robert Moses, "The Power Broker," built in and around the empire city of New York [$7.95]. "One Man's Road to Watergate," the man being former Nixon aide Jeb Stuart Magruder, is a new Pocket Books selection [$1.95]. Penguin Books has "Justices and Presidents," Henry J. Abraham's political history of appointments to the Supreme Court, among its current offerings [$2.95]. A new Delta reprint is Vine Deloria, Jr. 's "God Is Red," a work offering an alternative to Christianity through a return to Indian beliefs and concepts [$2.95].

Douglas Day's National Book Award-winning biography of "Malcolm Lowry" is now available as a Dell paperback [$2.25]. Pearl S. Buck's personal record of "My Several Worlds" has just been reprinted for the ninth time by Pocket Books [$1.95]. "Letters of Thomas Mann" is a Vintage publication [$6.95]. Joining the shelves of the Norton Library is "The Memoirs of Hector Berlioz," newly translated, edited and introduced by David Cairns [$6.95], Noonday Press has a "new canonization edition" of Joseph I. Dirvin's biography of "Mrs. Seton," founder of the American Sisters of Charity [$4.95], and Popular Library is seeking more popularity for Don McDonagh's biography of dancer Martha Graham [$1.95] as well for "Beloved Prophet," the love letters of Kahil Gibran and Mary Haskell [$1.95].

Two Vintage paperbacks are "Seduction and Betrayal, Women and Literature" by Elizabeth Hardwick [$2.45] and "Love-Hate Relations, English and American Sensibilities" by Stephen Spender [$4.95]. Cambridge has a second paperback edition of Joan Bennett's "Virginia Woolf, Her Art as a Novelist" [$4.95]. "Accomplices of Silence," a study of the modern Japanese novel by Masao Miyoshi, is a California paperback [$3.25], Prentice-Hall has published a fifth edition of "An Approach to Literature" by Cleanth Brooks, John Thibaut Purser and Robert Penn Warren, a work whose first edition appeared in 1936 [Hardback, $10.95]. A- Dover publication is Gertrude Stein's "How to Write," with a new preface and introduction by Patricia Meyerowitz [$3.50]. Also from Dover: E. V. Lucas and George Morrow's "What a Life!," the "humorous Dadist classic," with a new introduction by John Ashbery. Two Princeton paperbacks are Roland Mushat Frye's "Shakespeare's Life and Times," a pictorial record [$5.95]; and Mario Praz's "Mnemosyne, the Parallel Between Literature and the Visual Arts" [Bollingen Series, $6.95]. Collier Books has assembled a paperback selection of critical essays and documentary materials on Russian Nobel Prize novelist "Aleksandr Solzhenitsyn," edited by John B. Dunlop, Richard Haugh and Alexis Klimoff [$5.95].

Numerous and diverse novels are available in paperback editions this fall. Among them: "The Day of the Locust" [Bantam, $1.50]; "Office Politics," "Square's Progress," and "The Blacking Factory & Pennsylvania Gothic" by Wilfrid Sheed [Pocket Books, $1.75 each]; "Devil of A State" by Anthony Burgess [Norton, $2.95]; "Tinker, Tailor, Soldier, Spy" by John Le Carré [Bantam, $1.95]; "A Man and Two Women" by Doris Lessing and "The Middle Mist" by Mary Renault [Popular Library, $1.50 each]; "Three Wogs" by Alexander Theroux [Godine, $3.95]; "My Uncle Dudley" by Wright Morris [Nebraska, $2.95] ; "Mrs. Stevens Hears the Mermaids Singing" by May Sarton [Norton Library, $2.45]; and "Sapphira and the Slave Girl" by Willa Gather [Vintage, $2.95].