Using our natural resources :

Using our natural resources : 1983 yearbook of agriculture [by] Department of Agriculture, Government of United States - Washington, D.C. : U.S. Government Printing , 1983 - xxxix, 565p.: col. ill ; 21cm

Index: pp 566-72

Agriculture-Periodicals Land use Natural resources

R 630.5 / UNI/U.1983

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