TY  - BK
AU  - Allard,R.W
TI  - Principles of plant breeding
U1  - 631.53 
PY  - 1960///
CY  - New York (USA)
PB  - John Wiley and Sons, 
KW  - Adaptation
KW  - AGROVOC
KW  - Breeding methods
KW  - Hybridization
KW  - Mutation
KW  - Selection
KW  - Plant breeding
ER  -