Guideline.

Bibliographic Details
New Title:	Trends (Washington, D.C.)
Previous Title:	Park practice guidelines
Corporate Authors:	Park Practice Program (U.S.), National Recreation and Park Association, National Conference on State Parks, United States. National Park Service
Format:	Journal
Language:	English
Published:	Washington, D.C. : National Conference on State Parks
Subjects:	Parks > United States. Recreation > United States. Parks. Recreation. United States.

Description
Published:	V. [1] (1971?)-v. 4, no. 4 (Aug. 1974).
Physical Description:	4 volumes : illustrations ; 11 cm