Dyfyniad APA

Lanyon, R. I., & Goodslein, L. D. (1971). Personality assessment. John wiley.

Dyfyniad Arddull Chicago

Lanyon, Richard I., and Leonard D. Goodslein. Personality Assessment. New York: John wiley, 1971.

Dyfyniad MLA

Lanyon, Richard I., and Leonard D. Goodslein. Personality Assessment. John wiley, 1971.

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