edited by David F. Paulsen and Robert B. Denhardt
Dodd, Mead, 1973
Buku Teks
edited by Harold M. Groves
Henry Holt Company , 1950
Buku Teks
edited by Harold M. Groves
Henry Holt and Company , 1947
Buku Teks
edited by Dwight Waldo
McGraw-Hill, 1953
Buku Teks
Ingram, Robert W., author
Brington, 1980
Buku Teks