APA (7th ed.) Citation

Wills, R. H. (1973). The institutionalized severely retarded: A study of activity and interaction. Thomas.

Chicago Style (17th ed.) Citation

Wills, Richard H. The Institutionalized Severely Retarded: A Study of Activity and Interaction. Springfield, Ill.: Thomas, 1973.

MLA (9th ed.) Citation

Wills, Richard H. The Institutionalized Severely Retarded: A Study of Activity and Interaction. Thomas, 1973.

Warning: These citations may not always be 100% accurate.