TY  - SER
AU  - De Alwis, A.
TI  - A preliminary survey on some socio economic aspects of  the human communities of Maha-Oya, Kelani Ganga and Bolgoda/Panadura estuaries of Sri Lanka
PY  - 1986///-1987
CY  - Colombo 15
PB  - NARA
KW  - Aquatic Sciences
UR  - http://www.erepository.nara.ac.lk/handle/1/36
ER  -