J. S. Seager
Beverly S. Cohen
James H. Cavender
Unknown Author
John W. Scales
E. L. Gee
Institute of Environmental Sciences and Technology. Contamination Control Division
Robert P Vinson
Bruce P. Almich
Alberta. Alberta Environment
United States. Environmental Protection Agency.
World Clean Air Congress (9th 1992 Montréal, Québec)
Julie B. Lindemann
Shirley A. Ness
A. Berlin
V. Victor Kingsley