Cita APA (7th ed.)

Schwitzgebel, R. K., & Kolb, D. A. (1974). Changing human behavior: Principles of planned intervention. McGraw-Hill.

Cita Chicago (17th ed.)

Schwitzgebel, Ralph K., i David A. Kolb. Changing Human Behavior: Principles of Planned Intervention. New York: McGraw-Hill, 1974.

Cita MLA (9th ed.)

Schwitzgebel, Ralph K., i David A. Kolb. Changing Human Behavior: Principles of Planned Intervention. McGraw-Hill, 1974.