Kantowitz, B. H., Roediger, H. L., & Elmes, D. G. (1988). Experimental psychology: Understanding psychological research (Third Edition.). West Pub. Co..

Kantowitz, Barry H., Henry L. Roediger, and David G. Elmes. Experimental Psychology: Understanding Psychological Research. Third Edition. St. Paul: West Pub. Co., 1988.

Kantowitz, Barry H., et al. Experimental Psychology: Understanding Psychological Research. Third Edition. West Pub. Co., 1988.