TY  - BOOK
AU  - Richards, A. J.
TI  - Plant breeding systems
U1  - 581.15 
PY  - 1986///
CY  - London
PB  - George Allen & Unwin
KW  - Crops-Breeding
KW  - Plant Mutation Breeding
N1  - Contents; Library has 2nd edition also
ER  -