| Who What Where WhenWHATWHEN | REFINE  Browse All : Section Title Page and Agriculture and Physical of United States
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       Author Marschner, Francis J. Full Title (Section Title Page) Atlas of American Agriculture. Land Relief. Contribution of the Bureau of Agricultural Economics, A.G. Black, Chief. By F.J. Marschner, Research Assistant. United States Government Printing Office, Washington: 1936. Publisher U.S. Department of Agriculture 
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