Crops : a self-teaching course : based on crop management and soil conservation - Cox, Joseph Frank; Lyman, E. Jackson (New York : Wiley, 1937)
2c. ed. x EVA. Romed forces Institute
BATCH-UPD
BATCH-UPD
BATCH-UPD
CONVERSION
Keywords: Cultivos -- E.U.A.; Suelos -- Conservación -- E.U.A.