Washington (State). Department of Ecology. Toxics Investigations Section. (1995). Department of Ecology 1993-94 investigation of PCBs in the Spokane River. Washington State Dept. of Ecology, Toxics Investigations Section, Environmental Investigations and Laboratory Services Program.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Washington (State). Department of Ecology. Toxics Investigations Section. Department of Ecology 1993-94 Investigation of PCBs in the Spokane River. Olympia, Wash.: Washington State Dept. of Ecology, Toxics Investigations Section, Environmental Investigations and Laboratory Services Program, 1995.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Washington (State). Department of Ecology. Toxics Investigations Section. Department of Ecology 1993-94 Investigation of PCBs in the Spokane River. Washington State Dept. of Ecology, Toxics Investigations Section, Environmental Investigations and Laboratory Services Program, 1995.