TY  - GEN
AU  - Pemadasa , M.A.
AU  - Paulraj , P.J.
AU  - Weerasinghe , B.
AU  - Herat , T.R 
TI  - Botany plant ecology: block -I
U1  - 580 
PY  - 1986///
CY  - Nugegoda
PB  - Open University
KW  - Botany
KW  - Plant Sciences
ER  -