Dyfyniad APA

288584 Engler, B. (2009). Personality theories: An introduction. Boston, New York : Houghton Mifflin.

Dyfyniad Arddull Chicago

288584 Engler, Barbara. Personality Theories: An Introduction. Boston, New York : Houghton Mifflin, 2009.

Dyfyniad MLA

288584 Engler, Barbara. Personality Theories: An Introduction. Boston, New York : Houghton Mifflin, 2009.

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