TY  - BOOK
AU  - Kipps, Michael Smith,
TI  - Production of field crops: a textbook of agronomy 
SN  - 1084
U1  - 633.0973 
PY  - 1970///
CY  - New York
PB  - McGraw-Hill
KW  - Field crops
N1  - "Fifth ed. by T. K. Wolfe and M. S. Kipps"
ER  -