APA

United States, . (1981). Need to reexamine the federal role in planning, selecting, and funding state and local parks. [Washington, D.C: .

Chicago

United States, . 1981. Need to reexamine the federal role in planning, selecting, and funding state and local parks. [Washington, D.C: .

Harvard

United States, . (1981). Need to reexamine the federal role in planning, selecting, and funding state and local parks. [Washington, D.C: .

MLA

United States, . Need to reexamine the federal role in planning, selecting, and funding state and local parks. [Washington, D.C: . 1981.