edited by Philip A. Shaver
Warren, Gorham and Lamont, 1969
Buku Teks
edited by John P. Robinson, Phillip R. Shaver, Lawrence S. Wrightsman
Academic Press, 1991
Buku Teks
Sage, 1985
Buku Teks
St. Martin's Press, Inc. , 1993
Buku Teks
Mosby, 1961
Buku Teks