Cita APA (7a ed.)

Gardner, J. F., & Chapman, M. S. (1993). Developing staff competencies for supporting people with developmental disabilities: An orientation handbook (2nd ed.). Paul H. Brookes.

Cita Chicago Style (17a ed.)

Gardner, James F., y Michael S. Chapman. Developing Staff Competencies for Supporting People with Developmental Disabilities: An Orientation Handbook. 2nd ed. Baltimore [etc.]: Paul H. Brookes, 1993.

Cita MLA (9a ed.)

Gardner, James F., y Michael S. Chapman. Developing Staff Competencies for Supporting People with Developmental Disabilities: An Orientation Handbook. 2nd ed. Paul H. Brookes, 1993.