Specialty Conference on Operation & Maintenance Procedures for Gas Cleaning Equipment Pittsburgh, Pa., Air Pollution Control Association, Air Pollution Control Association. Technical Council, Industrial Gas Cleaning Institute, Edison Electric Institute, & Frederick, E. R. (1980). A Specialty Conference on Operation & Maintenance Procedures for Gas Cleaning Equipment. Western Pennsylvania Section, Air Pollution Control Association.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Specialty Conference on Operation & Maintenance Procedures for Gas Cleaning Equipment Pittsburgh, Pa., Air Pollution Control Association, Air Pollution Control Association. Technical Council, Industrial Gas Cleaning Institute, Edison Electric Institute, và Edward R. Frederick. A Specialty Conference on Operation & Maintenance Procedures for Gas Cleaning Equipment. [Pittsburgh]: Western Pennsylvania Section, Air Pollution Control Association, 1980.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Specialty Conference on Operation & Maintenance Procedures for Gas Cleaning Equipment Pittsburgh, Pa., et al. A Specialty Conference on Operation & Maintenance Procedures for Gas Cleaning Equipment. Western Pennsylvania Section, Air Pollution Control Association, 1980.