APA (7e ed.) Bronvermelding

Johnson, G. E. (1916). Education through recreation. McGrath and National Recreation and Park Association.

Chicago (17e ed.) Bronvermelding

Johnson, George Ellsworth. Education Through Recreation. Washington: McGrath and National Recreation and Park Association, 1916.

MLA (8e ed.) Bronvermelding

Johnson, George Ellsworth. Education Through Recreation. McGrath and National Recreation and Park Association, 1916.

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