APA Edition Citation

Sommer, R., & Sommer, B. B. (1980). A practical guide to behavioral research tools and techniques (Second ed.). Oxford University Press.

Chicago Edition Citation

Sommer, Robert, and Barbara B. Sommer. A Practical Guide to Behavioral Research Tools and Techniques. Second ed. New York: Oxford University Press, 1980.

MLA Edition Citation

Sommer, Robert, and Barbara B. Sommer. A Practical Guide to Behavioral Research Tools and Techniques. Second ed. Oxford University Press, 1980.