TY  - BOOK
AU  - Davis P H
AU  -  Heywood V H
TI  - Principles of angiosperm taxonomy
U1  - I5:11, K3;3   TI 
PY  - 1963///
CY  - Edinburgh
PB  - Oliver & Boyd       
KW  - Angiosperm taxonomy
N1  - Bibliography 489-532p
ER  -