APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

Witkin, Belle Ruth, en James W. Altschuld. Planning and Conducting Needs Assessments: A Practical Guide. Thousand Oaks: Sage Publications, 1995.

MLA (9e ed.) Bronvermelding

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