APA (7th ed.) Citation

Oskamp, S., & Spacapan, S. (1992). Helping ang being helped: Naturalistic studies. Sage.

Chicago Style (17th ed.) Citation

Oskamp, Stuart, and Shirlynn Spacapan. Helping Ang Being Helped: Naturalistic Studies. Newbury Park, Calif: Sage, 1992.

MLA (9th ed.) Citation

Oskamp, Stuart, and Shirlynn Spacapan. Helping Ang Being Helped: Naturalistic Studies. Sage, 1992.