Cita APA

Corey, M. S., & Corey, G. (2007). Becoming a helper. Belmont, CA: Thomson Higher Education.

Chicago Style Citation

Corey, Marianne Schneider, i Gerald Corey. Becoming a Helper. Belmont, CA: Thomson Higher Education, 2007.

Cita MLA

Corey, Marianne Schneider, i Gerald Corey. Becoming a Helper. Belmont, CA: Thomson Higher Education, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.