Toxicity study of effluent discharged from Bintulu, Labuan and Miri crude oil terminals, and from Lutong refinery Khoo Khay Huat ... (et al.) - Kuala Lumpur Petronas 1991 - 110 p. : ill. ; 22 cm. Subjects--Topical Terms: Effluent quality--SarawakEnvironmental impact analysis--SarawakHazardous wastes--Sarawak