SCHWITZGEBEL, R. K., & KOLB, D. A. (1974). Changing human behavior: Principles of planned inter-vention. McGraw-Hill Kogakusha.
Cita Chicago (17th ed.)SCHWITZGEBEL, Raplh K., i David A. KOLB. Changing Human Behavior: Principles of Planned Inter-vention. Tokyo: McGraw-Hill Kogakusha, 1974.
Cita MLA (9th ed.)SCHWITZGEBEL, Raplh K., i David A. KOLB. Changing Human Behavior: Principles of Planned Inter-vention. McGraw-Hill Kogakusha, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.