Davis, Janet M.
The gospel of kindness: animal welfare and the making of modern America
Oxford University Press, 2016
eBooks
America
W.W. Norton,
Buku Referensi
Sitkoff, Harvard
Postwar America
Oxford University Press, 2000
Buku Teks
Chronicle of America.
ECAM Publications, 1989
Buku Teks
Risjord, Norman K.
America a history of the United States
Prentice-Hall, 1985
Buku Teks SO