TY  - BOOK
AU  - Briggs, D
AU  - Walters, S.M
TI  - Plant Variation and Evolution
U1  - 581.38 
PY  - 1972///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Botanical sciences
KW  - Pure Sciences
KW  - Evolution
KW  - Plants
ER  -