TY  - BOOK
AU  - Delorit,Richard J.
AU  - Greub,Louis J.
AU  - Ahlgren,Henry Lawrence
TI  - Crop production
T2  - Prentice-Hall vocational agriculture series
SN  - 0131947613
PY  - 1973///, c1974]
CY  - Englewood Cliffs, N.J.,
PB  - Prentice-Hall
KW  - Field crops
ER  -