TY  - BOOK
AU  - Nair,P.K.K.
TI  - Pollen morphology of angiosperms : a historical and phylogenetic study
U1  - 582.13 NAI  
PY  - 1970///.
CY  - Lucknow : 
PB  - Scholar Publishing House, 
KW  - Angiosperms
KW  - Pollen--Morphology
ER  -