APA
(1997). Workshop on Chemical Aspects of Environment. Colombo: Department of Chemistry University of Colombo.
Chicago
1997. Workshop on Chemical Aspects of Environment. Colombo: Department of Chemistry University of Colombo.
Harvard
(1997). Workshop on Chemical Aspects of Environment. Colombo: Department of Chemistry University of Colombo.
MLA
Workshop on Chemical Aspects of Environment. Colombo: Department of Chemistry University of Colombo. 1997.