Cummings, Paul, author
St. Martin's Press, 1966
Buku Referensi
Fielding, Mantle, 1865-1941, author
Apollo, 1983
Buku Referensi
Kongressional Quarterly, 2000
Buku Teks
edited by Stanley J. Kunitz and Howard Haycraft
H.W. Wilson, 1960
Buku Referensi
Brooks, Van Wyck
E.P.Dutton, 1958
Buku Teks