TY  - BOOK
AU  - A. J. C. Grierson
AU  -  D. G. Long 
TI  - Flora of Bhutan : : including a record of plants from Sikkim . VOLUME I part 1 
SN  - 0950427012
U1  - 582.13 GRI  
PY  - 1983///
CY  - Edinburgh.
PB  - Royal Botanic Garden 
KW  -  Flora of Bhutan
ER  -