TY  - BOOK
AU  - Walter R Fehr
TI  - Principles of cultivar development 
SN  - 0-02-949920-8
U1  - 581.56 
PY  - 1987///
CY  - New York
PB  - Macmillan Publishing Co
KW  - Breeding
N1  - Walter R Fehr: Principles of cultivar development.  New York.  Macmillan Publishing Co, 1987. 0-02-949920-8--(581.56FEH)
ER  -