एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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