Dyfyniad APA

Feldman, R. S. (1994). Essentials of understanding psychology. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Feldman, Robert S. Essentials of Understanding Psychology. New York: McGraw-Hill, 1994.

Dyfyniad MLA

Feldman, Robert S. Essentials of Understanding Psychology. New York: McGraw-Hill, 1994.

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