Dyfyniad APA

Corey, G., & Corey, M. S. (1990). I never knew I had a choice (4th.ed.). Brooks/Cole.

Dyfyniad Arddull Chicago

Corey, Gerald, and Marianne Schneider Corey. I Never Knew I Had a Choice. 4th.ed. Pacific Grove: Brooks/Cole, 1990.

Dyfyniad MLA

Corey, Gerald, and Marianne Schneider Corey. I Never Knew I Had a Choice. 4th.ed. Brooks/Cole, 1990.

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