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Outdoor Recreation in Iowa

Iowa State Conservation Commission

出版	The Commission, 1966
URL	http://books.google.com.hk/books?id=8O3unAAACAAJ&hl=&source=gbs_api

註釋

This 'Statewide Comprehensive Outdoor Recreation Plan' has been prepared by the State Conservation Commission as an 'interim plan' which will serve as a basis for more sophisticated and refined planning in the future.