TY  - BOOK
AU  - David S. Seigler
TI  - Crop resources
SN  - 0-12-634950-9
U1  - 581.606 
PY  - 1977///
CY  - New York
PB  - Academic Press
N1  - David S. Seigler: Crop resources.  New York.  Academic Press, 1977. 0-12-634950-9--(581.606SEI)
ER  -