TY  - BOOK
AU  - Fehr, Walter R
TI  - Principles of cultivar development vol.1
SN  - 0029499298
U1  - 631.53/FEH 
PY  - 1987///
CY  - New York
PB  - Macmillan Publishing Company
KW  - Field crops--Breeding
KW  - Field crops--Varieties
ER  -