TY  - BOOK
AU  - Hutcheson, T. B.
AU  - Kipps, M. S.
AU  - Wolfe, T. K.
TI  - The production of field crops: a textbook of agronomy 
U1  - 633 
PY  - 1936///
CY  - New York
PB  - McGraw Hill 
KW  - Agriculture
KW  - United States 	
KW  - Field crops 	
KW  - Agronomy
ER  -