TY  - BOOK
AU  - Geesink, R et al.
TI  - Thonner's analytical key to the families of flowering plants
SN  - 9022007308
U1  - 582.13012/GEE 
PY  - 1981///
CY  - The Hague
PB  - Leiden University Press
KW  - Angiosperms
KW  - Phanerogams
ER  -