Geology of coal
Subtitle: examination of coal properties, drifts, slopes, and shafts, methods of working
Series: I.C.S. reference library -- 150
Publisher: International Textbook Company
Published: 1907
Place of publication: Scranton, [Pa.]
Language: eng
Copyright date: 1907
Subjects: Coal; Coal mines and mining
Other titles: Geology of coal, examination of coal properties, drifts, slopes, and shafts, methods of working.; Examination of coal properties.; Drifts, slopes, and shafts.; Methods of working.