Beard, Charles A.
The Making of American civilization
Macmillan, 1948
 Buku Teks
Liss, Sheldon B.
Radical thought in central America
Westview Press, 1991
 Buku Teks
Scott, Andrew M.
Political thought in America
Holt, Rinehart & Winston, 1959
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McGrath, Alister E.
Darwinism and the divine : evolutionary thought and natural theology
Wiley-Blackwell, 2011
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Eldredge, Niles
Unfinished synthesis biological nierarchies and modern evolutionary thought
Oxford University Press, 1985
 Buku Teks