APA Citatie

Crawford, M. E., & Mendell, R. (1987). Therapeutic recreation and adapted physical activities for mentally retarded individuals.

Chicago Style citaat

Crawford, Michael E., en Ron Mendell. Therapeutic Recreation and Adapted Physical Activities for Mentally Retarded Individuals. New Jersey, Prentice-Hall, 1987.

MLA citatie

Crawford, Michael E., en Ron Mendell. Therapeutic Recreation and Adapted Physical Activities for Mentally Retarded Individuals. 1987.