APA (7e ed.) Bronvermelding

Não informado. (1969). Journal of Leisure Research. National Recreation and Park Association.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of Leisure Research. Washington: National Recreation and Park Association, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Journal of Leisure Research. National Recreation and Park Association, 1969.

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