APA (7e ed.) Bronvermelding

Não informado. (2002). Parks & Recreation. National Recreation and Park Association.

Chicago (17e ed.) Bronvermelding

Não informado. Parks & Recreation. Arlington, Va: National Recreation and Park Association, 2002.

MLA (8e ed.) Bronvermelding

Não informado. Parks & Recreation. National Recreation and Park Association, 2002.

Let op: Deze citaties zijn niet altijd 100% accuraat.