TY  - BOOK
AU  - Hughes,Harold D., Henson, Edwin R.
AU  - x
TI  - Crop production principles and practices: x
SN  - x
U1  - 631.5/HUC 
PY  - 1967///
CY  - N.Y.
PB  - Macmillan
KW  - Agriculture
N1  - x
ER  -