TY  - BOOK
AU  - Hutcheson T B
AU  -  Kipps M S
AU  -  Wolfe T K
TI  - Production of field crops: A textbook of agronomy
T2  - McGraw-Hill publications in the agricultural science
U1  - J, G6 
PY  - 1936///
CY  - New York    
PB  -  McGraw-Hill        
KW  - Agriculture
N1  - Includes references
ER  -