Cita APA (7th ed.)

Warheit, G. J., Bell, R. A., & Schwab, J. J. Planning for change: Needs assessment approaches. s.n.

Cita Chicago (17th ed.)

Warheit, George J., Roger A. Bell, i John J. Schwab. Planning for Change: Needs Assessment Approaches. [S.l: s.n.

Cita MLA (9th ed.)

Warheit, George J., et al. Planning for Change: Needs Assessment Approaches. s.n.