TY  - BOOK
AU  - Briggs,D
AU  - Walters,S.M.
TI  - Plant variation and evolution
U1  - 581.1 
PY  - 1984///
CY  - Cambridge [Cambridgeshire], New York
PB  - Cambridge University
KW  - Plants
KW  - Evolution
KW  - Variation
ER  -