REFINE     Who What Where When     REMOVE Agriculture Soils Marschner, Francis J. WHAT National Atlas (5) Atlas Map (4) Composite Map (1) WHERE United States (5) Arizona (2) WHO Baker, Oliver Edwin (5) U.S. Department of Agricu … (5) Marbut, Curtis F. (2) Marbut, C.F. (1) WHEN 1931 (5) 1936 (5)

REFINE  Browse All : Agriculture and Soils by Marschner, Francis J. 1-5 of 5   Marbut, Curtis F.; Mars... Composite: Soil Map of ... 1931 National Atlas Author [Marschner, Francis J., Marbut, Curtis F.]   Marbut, Curtis F.; Mars... Soil Map of the United ... 1931 National Atlas Author [Marschner, Francis J., Marbut, Curtis F.]   Marschner, Francis J.; ... Soils without Normal Pr... 1931 National Atlas Author [Marschner, Francis J., Marbut, C.F.]   Marschner, Francis J. Parent Materials of Soi... 1931 National Atlas Author Marschner, Francis J.   Marschner, Francis J. Great Soil Groups. Atla... 1931 National Atlas Author Marschner, Francis J. 1-5 of 5

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