APA Citation

Barbara Sommer, R. S. A practical guide to behavioral research tols and techniques. Oxford Universiy Press.

Chicago Style Citation

Barbara Sommer, Robert Sommer. A Practical Guide to Behavioral Research Tols and Techniques. Oxford Universiy Press.

MLA Citation

Barbara Sommer, Robert Sommer. A Practical Guide to Behavioral Research Tols and Techniques. Oxford Universiy Press.

Warning: These citations may not always be 100% accurate.