TY - BOOK AU - Fergus,E.N. AU - Hammonds,Carsie AU - Gregory,R.W. TI - Field crops management AV - SB185 .F4 1949 U1 - 633 PY - 1949///] CY - Philadelphia PB - J.B. Lippincott Co. KW - Agriculture KW - United States KW - Field crops N1 - "References" at end of most of the chapters ER -