Cita APA (7a ed.)

Zastrow, C., & Kirst-Ashman, K. K. (1990). Understanding human behavior and the social environment (2. ed.). Nelson-Hall.

Cita Chicago Style (17a ed.)

Zastrow, Charles, y Karen K. Kirst-Ashman. Understanding Human Behavior and the Social Environment. 2. ed. Chicago: Nelson-Hall, 1990.

Cita MLA (8a ed.)

Zastrow, Charles, y Karen K. Kirst-Ashman. Understanding Human Behavior and the Social Environment. 2. ed. Nelson-Hall, 1990.