TY  - BOOK
AU  - Duggar, John Fredrick
TI  - Outhern field crops: exclusive of forage plants 
U1  - 633 22
PY  - 1991///
CY  - New York
PB  - The Maclillan Company
KW  - Agronomy
KW  - Field crops
N1  - Includes index
ER  -