APA (7th ed.) Citation

Proctor, R. W., & Capaldi, E. J. (2006). Why science matters: Understanding the methods of psychological research. Blackwell Pub..

Chicago Style (17th ed.) Citation

Proctor, Robert W., and E. John Capaldi. Why Science Matters: Understanding the Methods of Psychological Research. Malden, MA: Blackwell Pub., 2006.

MLA (9th ed.) Citation

Proctor, Robert W., and E. John Capaldi. Why Science Matters: Understanding the Methods of Psychological Research. Blackwell Pub., 2006.