TY  - BOOK
AU  - Lawrence, George H. M. 
TI  - Taxonomy of vascular plants
U1  - 587 LAW  
PY  - 1964///.
CY  - Calcutta : 
PB  - Oxford & IBH Publishing Co.,  
KW  - Taxonomy Gymnosperms
KW  - Plants
N1  - Includes index.
ER  -