Cita APA (7a ed.)

Witkin, B. R., & Altschuld, J. W. (1995). Planning and conducting needs assessments: A practical guide. Sage.

Cita Chicago Style (17a ed.)

Witkin, Belle Ruth, y James W. Altschuld. Planning and Conducting Needs Assessments: A Practical Guide. Thousand Oaks, California [etc.]: Sage, 1995.

Cita MLA (9a ed.)

Witkin, Belle Ruth, y James W. Altschuld. Planning and Conducting Needs Assessments: A Practical Guide. Sage, 1995.