Johnson, G. E. (1916). Education through recreation. McGrath and National Recreation and Park Association.
Citação do estilo Chicago (17ª ed.)Johnson, George Ellsworth. Education Through Recreation. Washington: McGrath and National Recreation and Park Association, 1916.
Citação MLA (8ª ed.)Johnson, George Ellsworth. Education Through Recreation. McGrath and National Recreation and Park Association, 1916.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.