The Penguin Australian song book / compiled with notes by John Manifold
Penguin Books, 1980
 Buku Teks SO
Geography and the American environment / Edited by Saul B. Cohen
Voice of America Forum Lectures , 1968
 Buku Teks
Kirby, David K.
American fiction to 1900 : a guide to information sources. Volume 4
Gale Research, 1975
 Buku Referensi
Bryson, George D.
Profits from abroad : a reveille for American business / George D. Bryson
McGraw-Hill , 1964
 Buku Teks SO
Commager, Henry Steele, selector
The American mind
Yale University Press, 1950
 Buku Teks