Gaya APA

Trull, T, J., Prinstein, M, J. (2013). The Science and Practice of Clinical Psychology 8'th Ed. (8). Singapore: Wadsworth.

Gaya MLA

Trull, Timothy, J.., Prinstein, Mitchell, J.. "The Science and Practice of Clinical Psychology 8'th Ed.". 8 Singapore: Wadsworth, 2013. Text.