Dyfyniad APA

Corey, G., Callanan, P., & Corey, M. S. (1984). Issues and ethics in the helping professions (2nd ed.). Brooks.

Dyfyniad Arddull Chicago

Corey, Gerald, Patrick Callanan, and Marianne S. Corey. Issues and Ethics in the Helping Professions. 2nd ed. Monterey: Brooks, 1984.

Dyfyniad MLA

Corey, Gerald, et al. Issues and Ethics in the Helping Professions. 2nd ed. Brooks, 1984.

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