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1
Energy interpretation : a guide for Idaho state parks /
Published 1981“…[Cooperative Park Studies Unit, National Park Service, …”
Search for the full-text version of this title in HathiTrust
Government Document Book -
2
Mapping interpretive services : identifying barriers to adoption and diffusion of the method /
Published 1984“…Cooperative Park Studies Unit, College of Forestry, …”
Government Document Book