TY  - BOOK
AU  - Pratley, J. E.
TI  - Principles of field crop production
SN  - 0424001314
U1  - 633 SYD 1988 A041 Or. 
PY  - 1988///
CY  - [Sydney]
PB  - Sydney University Press
KW  - Field crops
UR  - http://www.loc.gov/catdir/enhancements/fy0639/90114741-d.html
ER  -