TY  - BOOK
AU  - Kipps,Michael Smith
TI  - Production of field crops: a textbook of agronomy 
PY  - 1971///
CY  - New Delhi
PB  - McGraw-Hill
KW  - Field crops
KW  - Agriculture
KW  - United States
N1  - Fifth ed. by T. K. Wolfe and M. S. Kipps; Includes references and index
ER  -