United States. National Park Service. Western Regional Office. Park and Recreation Technical Services Division. (1983). Winning support for parks and recreation. Venture.
Cita Chicago (17th ed.)United States. National Park Service. Western Regional Office. Park and Recreation Technical Services Division. Winning Support for Parks and Recreation. State College, PA: Venture, 1983.
Cita MLA (8th ed.)United States. National Park Service. Western Regional Office. Park and Recreation Technical Services Division. Winning Support for Parks and Recreation. Venture, 1983.
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