American authors 1600-1900 : a biographical dictionary of American literature
edited by Stanley J. Kunitz and Howard Haycraft
H.W. Wilson, 1960
 Buku Referensi
Contemporary authors bibliographical series; Volume 2, American poets
edited by Ronald Baughman
Gale Reserach , 1986
 Buku Referensi
Margolies, Edward
Native sons : a critical study of twentieth-century Negro American authors
J.B. Lippincott, 1969
 Buku Teks SO
Millett, Fred B.
Contemporary American authors : a critical survey and 219 bio-bibliographies
Harcourt, Brace, 1940
 Buku Teks SO
Montgomery, John D.
The politics of foreign aid : American experience in Southeast Asia
Frederick A. Praeger, 1962
 Buku Teks