Cita APA (7a ed.)

Berger, R. M., & Patchner, M. A. (1988). Planning for research: : a guide for the helping professions. Sage.

Cita Chicago Style (17a ed.)

Berger, Raymond M., y Michael A. Patchner. Planning for Research: : A Guide for the Helping Professions. Newbury Park [etc.]: Sage, 1988.

Cita MLA (9a ed.)

Berger, Raymond M., y Michael A. Patchner. Planning for Research: : A Guide for the Helping Professions. Sage, 1988.