Unknown Author
Robert V. Chandler
Robert Stefanko
International Symposium on Class I & II Well Technology (1989 Dallas, Tex.)
International Symposium on Subsurface Injection of Liquid Wastes (1986 New Orleans, La.)
Roy, William R.
Dennis J. Nealon
Mohammed Ismail Iqbal
Manoutchehr Heidari
Ben K. Knape
United States. Forest Service. San Juan National Forest
United States. Environmental Protection Agency.
C. B. Hutchinson
Alberta. Alberta Environment
Donald L. Warner