Jackson, Gabriel
The Spanish Republic and the Civil War 1931-1939 / by Gabriel Jackson
Princeton University Press, 1972
 Buku Teks SO
Bates, Ralph
The Fields of paradise / by Ralph Bates
E.P. Dutton, [1940]
 Buku Teks SO
Field, Oliver P
Bates and Field's State Governmen/Oliver P. Fields, Pressly S. Sikes, John E. Stoner
Harper, 1949
 Buku Teks
Lowry, Bates
Renaisance architecture / Bates Lowry
George Braziller, 1962
 Buku Teks SO
Linton, Adelin
Ralph Linton
Columbia University Press, 1971
 Buku Teks SO