TY  - BOOK
AU  - Gurcharan Singh.
TI  - Plant systematics: an integrated approach 
SN  - 1578083427
SN  - 0080-0694
PY  - 2004///
CY  - Enfield, NH
PB  - Science Publisher
KW  - Plants
KW  - Classification
KW  - History
KW  - Phylogeny
ER  -