Annal of the Association of American Geographer
Nendeln : The Association of American Geographers
 Majalah, Jurnal, Buletin
The best American essays 1986
edited by Elizabeth Hardwick
Ticknor and Fields, 1986
 Buku Teks
The Best American essays
Katheleen Norris
Houghton Mifflin, 2001
 Buku Teks
New essays on the American/edited by Martha Banta
Cambridge Cambridge University Press 1987,
 Buku Teks
Mott, Frank Luther
Golden multitudes the story of best sellers in the United States by
New York The MacMillan Company 1947
 Buku Teks