11. Soil conservation, devoted to wise use of land and water resources, [official magazine of Soil Conservation Service; prepared in Division of Information, Ben. O. Osbourn, editor]. Bookmark SuDoc number: A 57.9: (v.nos.&nos.)
12. Soil conservation, devoted to wise use of land and water resources, [official organ of Soil Conservation Service; prepared in Division of Information, Ben O. Osborn, editor]. Bookmark SuDoc number: A 57.9:(v.nos.&nos.)