Cita APA (7a ed.)

Powers, M. D. (1988). Expanding systems of service delivery for persons with developmental disabilities. Paul H. Brookes.

Cita Chicago Style (17a ed.)

Powers, Michael D. Expanding Systems of Service Delivery for Persons with Developmental Disabilities. Baltimore [etc.]: Paul H. Brookes, 1988.

Cita MLA (9a ed.)

Powers, Michael D. Expanding Systems of Service Delivery for Persons with Developmental Disabilities. Paul H. Brookes, 1988.