Cita APA (7a ed.)

Powers, M. D., & Handleman, J. S. (1984). Behavioral assessment of severe developmental disabilities. Aspen Systems Corporation.

Cita Chicago Style (17a ed.)

Powers, Michael D., y Jan S. Handleman. Behavioral Assessment of Severe Developmental Disabilities. Rockville, Maryland: Aspen Systems Corporation, 1984.

Cita MLA (9a ed.)

Powers, Michael D., y Jan S. Handleman. Behavioral Assessment of Severe Developmental Disabilities. Aspen Systems Corporation, 1984.