Cita APA (7a ed.)

Kottler, J. A. (2008). A brief primer of helping skills. SAGE.

Cita Chicago Style (17a ed.)

Kottler, Jeffrey A. A Brief Primer of Helping Skills. London: SAGE, 2008.

Cita MLA (9a ed.)

Kottler, Jeffrey A. A Brief Primer of Helping Skills. SAGE, 2008.