TY  - BOOK
AU  - Kipps, M. S.
TI  - Production of field crops: a textbook of agronomy 
T2  - McGraw-Hill publications in the agricultural sciences
U1  - 634.9  
PY  - 1978///
CY  - New York
PB  - McGraw-Hill
KW  -  Crops : Agricultures
N1  - Includes bibliographical references
ER  -