एपीए उद्धरण

Derlega, V. J. (1982). Cooperation and helping behavior: Theoties and research. New York: Academic Press.

शिकागो स्टाइल उद्धरण

Derlega, Valerian J. Cooperation and Helping Behavior: Theoties and Research. New York: Academic Press, 1982.

एमएलए उद्धरण

Derlega, Valerian J. Cooperation and Helping Behavior: Theoties and Research. New York: Academic Press, 1982.