V. E. Gleason
United States. Office of Surface Mining Reclamation and Enforcement.
Antony Johnston
J. Toby Tourbier
Davis, Robert E. hydrologist
Unknown Author
Richardson, Bland Z.
Willard M. Spaulding
William Kelly
William E Sopper
Susan Hirsch
Susan F. Hirsch
Alan M. Lumb
Sinclair, John
B. K. Ovodenko
Dumitru C. Fodor
Vitaliĭ Georgievich Seli͡anin
A. V. Arkhipov