TY  - BOOK
AU  - Martin, John H
AU  - Leonard, Warren H
AU  - Stamp, David L
TI  - Principles of field crop production
SN  - 0023767200
U1  - 633 
PY  - 1976///
CY  - New York
PB  - Macmillan
KW  - Plantation crops
ER  -