APA (7e ed.) Bronvermelding

Não informado. (2002). Parks & Recreation. American Institute of Park Executives.

Chicago (17e ed.) Bronvermelding

Não informado. Parks & Recreation. Wheeling, Ill: American Institute of Park Executives, 2002.

MLA (8e ed.) Bronvermelding

Não informado. Parks & Recreation. American Institute of Park Executives, 2002.

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