Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
73 630.7 IRB382 O19037
Iowa State College., Agricultural Experiment Station Principles of conservation economics and policy Iowa: [s.n.], 1951 - (Research Bulletin 382) * Administrative report * Series