Dyfyniad APA

Corey, G., & Corey, M. S. (1993). Issues and ethics in the helping professions. Brooks/Cole.

Dyfyniad Arddull Chicago

Corey, Gerald, and Marianne S. Corey. Issues and Ethics in the Helping Professions. California: Brooks/Cole, 1993.

Dyfyniad MLA

Corey, Gerald, and Marianne S. Corey. Issues and Ethics in the Helping Professions. Brooks/Cole, 1993.

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