TY  - BOOK
AU  - Richards, A.J.
TI  - Plant breeding systems
SN  - 0045810206
U1  - 581.35 21st ed.
PY  - 1986///
CY  - Boston
PB  - George Allen and Unwin Ltd.
KW  - Genetics
KW  - Plant breeding
KW  - Plants
N1  - Index: p. 510-29
ER  -