TY  - BOOK
AU  - Wolfe, T.K.
AU  - Kipps, M.S.
TI  - Production of field crops : A textbook of agronomy
U1  - 630 W 853 
PY  - 1953///
CY  - New York
PB  - Mcgraw-hill book
KW  - Agronomy
ER  -