Zastrow Charles & Kirst-Ashman, K. K. (1990). Understanding human behavior and the social environment (Second edition.). Nelson-Hall Publishers.
Citazione stile Chigago Style (17a edizione)Zastrow Charles e Karen Kay Kirst-Ashman. Understanding Human Behavior and the Social Environment. Second edition. Chicago: Nelson-Hall Publishers, 1990.
Citatione MLA (9a ed.)Zastrow Charles e Karen Kay Kirst-Ashman. Understanding Human Behavior and the Social Environment. Second edition. Nelson-Hall Publishers, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.