American authors 1600-1900 : a biographical dictionary of American literature
edited by Stanley J. Kunitz and Howard Haycraft
H.W. Wilson, 1960
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Contemporary authors bibliographical series; Volume 2, American poets
edited by Ronald Baughman
Gale Reserach , 1986
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Millett, Fred B.
Contemporary American authors : a critical survey and 219 bio-bibliographies
Harcourt, Brace, 1940
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Montgomery, John D.
The politics of foreign aid : American experience in Southeast Asia
Frederick A. Praeger, 1962
 Buku Teks
Crawford, Bartholow V.
American literature
Barnes & Noble, 1953
 Buku Teks SO