Sommer, B., & Sommer, R. (1997). A practical guide to behavioral research: Tools and techniques (4a. ed.). New York: Oxford University.
Chicago Style CitationSommer, Barbara, and R. Sommer. A Practical Guide to Behavioral Research: Tools and Techniques. 4a. ed. New York: Oxford University, 1997.
MLA CitationSommer, Barbara, and R. Sommer. A Practical Guide to Behavioral Research: Tools and Techniques. 4a. ed. New York: Oxford University, 1997.
Warning: These citations may not always be 100% accurate.