Healey, Joseph F., 1945-, author
Cengage Learning, 2015
Buku Teks
Healey, Joseph F., 1945-, author
Wadsworth, 1996
Buku Teks
Healey, Joseph F., 1945-, author
Wadsworth and Cengage Learning, 2012
Buku Teks
Healey, Joseph F., 1945-, author
Cengage Learning, 2016
Buku Teks
Babbie, Earl, author
Wadsworth, 2010
Buku Teks