Citazione Stile APA (7a Edizione)
Corey, G., Callanan, P., Corey, C., & Corey, M. S. (2015). Issues and ethics in the helping professions (Ninth edition.). Brooks/Cole/Cengage Learning.
Citazione stile Chigago Style (17a edizione)
Corey, Gerald, Patrick Callanan, Cindy Corey, e Marianne Schneider Corey. Issues and Ethics in the Helping Professions. Ninth edition. Australia: Brooks/Cole/Cengage Learning, 2015.
Citatione MLA (9a ed.)
Corey, Gerald, et al. Issues and Ethics in the Helping Professions. Ninth edition. Brooks/Cole/Cengage Learning, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.