edited by W. W. Cooper, H. J. Leavitt [and] M. W. Shelly II
John Wiley & Sons, 1964
Buku Teks
Hatch, Mary Jo, author
Oxford University Press, 1997
Buku Teks
Zwerman, William L
Greenwood Publishing Corporation, 1970
Buku Teks SO
Thompson, Victor A., author
Alfred A. Knopf, 1969
Buku Teks
Caplo, Theodore, author
Harcourt, Brace & World, 1964
Buku Teks