Παραπομπή σε μορφή APA (7η εκδ.)

United States Interdepartmental Work Group on Urban Recreation. (1974). Urban recreation: A report prepared for the nationwide outdoor recreation plan.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States Interdepartmental Work Group on Urban Recreation. Urban Recreation: A Report Prepared for the Nationwide Outdoor Recreation Plan. [Washington, U.S. Dept. of Housing and Urban Development, 1974.

Παραπομπή σε μορφή MLA (9th εκδ.)

United States Interdepartmental Work Group on Urban Recreation. Urban Recreation: A Report Prepared for the Nationwide Outdoor Recreation Plan. 1974.