Cita APA

National Recreation and Park Association (U.S.) & Lancaster, R. A. (1983). Recreation, park and open space standards and guidelines. National Recreation and Park Association.

Citación estilo Chicago

National Recreation and Park Association (U.S.) and Roger A. Lancaster. Recreation, Park and Open Space Standards and Guidelines. Alexandria, Va.: National Recreation and Park Association, 1983.

Cita MLA

National Recreation and Park Association (U.S.) and Roger A. Lancaster. Recreation, Park and Open Space Standards and Guidelines. National Recreation and Park Association, 1983.