Dyfyniad APA

Berscheid, E., & Walster, E. H. (1978). Interpersonal attraction (2nd ed.). Addison-Wesley.

Dyfyniad Arddull Chicago

Berscheid, Ellen, and Elaine Hatfield Walster. Interpersonal Attraction. 2nd ed. Reading: Addison-Wesley, 1978.

Dyfyniad MLA

Berscheid, Ellen, and Elaine Hatfield Walster. Interpersonal Attraction. 2nd ed. Addison-Wesley, 1978.

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