APA (7th ed.) Citation

Derlega, V. J., & Grzelak, J. (1982). Cooperation and helping behaviour : theories and research / edited by Valerian J. Derlega, Janusz Grzelak: Theories and research. Academic Press.

Chicago Style (17th ed.) Citation

Derlega, Valerian J., and Janusz Grzelak. Cooperation and Helping Behaviour : Theories and Research / Edited by Valerian J. Derlega, Janusz Grzelak: Theories and Research. New York ; London: Academic Press, 1982.

MLA (9th ed.) Citation

Derlega, Valerian J., and Janusz Grzelak. Cooperation and Helping Behaviour : Theories and Research / Edited by Valerian J. Derlega, Janusz Grzelak: Theories and Research. Academic Press, 1982.

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