Não informado. (2002). Parks & Recreation. American Institute of Park Executives.
Style de citation Chicago (17e éd.)Não informado. Parks & Recreation. Wheeling, Ill: American Institute of Park Executives, 2002.
Style de citation MLA (8e éd.)Não informado. Parks & Recreation. American Institute of Park Executives, 2002.
Attention : ces citations peuvent ne pas être correctes à 100%.