AU  - Chandrasena, J.P.N.R.
TI  - An illustrated manual of rice-field weeds in Sri Lanka
T2  - MAB Publication No.19
CY  - NARESA
PB  - Colombo
KW  - Biological Sciences
N1  - http://thakshana.nsf.ac.lk/slstic/NA-154/NA _154_i.pdf
ER  -