Park practice grist.
Washington, Park Practice Program.
1962- includes supplements and Plowback.
Issued May/June 1968-Jan./Feb. 1970 by the National Conference on State Parks, inc., in cooperation with Dept. of the Interior, National Park Service and National Recreation and Park Association.
A publication of the Park Practice Program, cooperatively conducted by the National Park Service, the National Conference on State Parks, and the National Recreation and Park Association.
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