TY  - BOOK
T1  - Crop production;principles and practices.
DA  - [c.1957]
CY  - New York,
AU  - Hughes, H. D.
AU  - Henson, Edwin R.,
ET  - Rev. ed.
CN  - SB185 .H75 1957
CN  - SB185
PB  - MacMillan Co.,
PP  - New York,
PY  - [c.1957]
ID  - 77435
KW  - Field crops.
TI  - Crop production;principles and practices.
ER  -