Coal; a review of the industry in the U.S. and Alaska with emphasis on mechanical cleaning
University of Alaska, Fairbanks
100 p., Illus.
Geophysical Institute Library: THESIS; Juneau Minerals Information Center: TN816 C6; Rasmuson Library: ALASKA TN816 C6; Rasmuson Library: ARCHIVES 1975
Minerals Data and Information Rescue in Alaska (MDIRA)