APA (7th ed.) Citation

Thorn, B. E. (1978). Normalization and recreation service delivery systems. [publisher not identified].

Chicago Style (17th ed.) Citation

Thorn, Bernard E. Normalization and Recreation Service Delivery Systems. [Place of publication not identified]: [publisher not identified], 1978.

MLA (9th ed.) Citation

Thorn, Bernard E. Normalization and Recreation Service Delivery Systems. [publisher not identified], 1978.