TY  - GEN
AU  - Harlan, Jack R.
TI  - Crops & Man
SN  - 0-89118-107-5
U1  - 581.63 
PY  - 1992///
PB  - Madison, Wis.: American Society of Agronomy : Crop Science Society of America
KW  - CROPS AGRICULTURE HISTORY
ER  -