Não informado. (2002). Parks & Recreation. American Institute of Park Executives.
Chicagoスタイル(17版)引用形式Não informado. Parks & Recreation. Wheeling, Ill: American Institute of Park Executives, 2002.
MLA(8版)引用形式Não informado. Parks & Recreation. American Institute of Park Executives, 2002.
警告: この引用は必ずしも正確ではありません.