Cita APA (7a ed.)

Zastrow, C., & Kirst-Ashman, K. K. (2004). Understanding human behavior and the social environment (6th ed.). Thomson.

Cita Chicago Style (17a ed.)

Zastrow, Charles, y Karen Kay Kirst-Ashman. Understanding Human Behavior and the Social Environment. 6th ed. Belmont, Calif: Thomson, 2004.

Cita MLA (9a ed.)

Zastrow, Charles, y Karen Kay Kirst-Ashman. Understanding Human Behavior and the Social Environment. 6th ed. Thomson, 2004.