Dyfyniad APA

SCHWITZGEBEL, R. K., & KOLB, D. A. (1974). Changing human behavior: Principles of planned inter-vention. McGraw-Hill Kogakusha.

Dyfyniad Arddull Chicago

SCHWITZGEBEL, Raplh K., and David A. KOLB. Changing Human Behavior: Principles of Planned Inter-vention. Tokyo: McGraw-Hill Kogakusha, 1974.

Dyfyniad MLA

SCHWITZGEBEL, Raplh K., and David A. KOLB. Changing Human Behavior: Principles of Planned Inter-vention. McGraw-Hill Kogakusha, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.