Longwall and room-and-pillar productivity : a review of the U.S. coal mines /

Includes bibliographical references.

Coal mines regulation (eight hours) act, 1908.

Mode of access: Internet.

Summarized Reports of Principal Investigations Being Conducted at the Mining Experiment Stations of the Bureau of Mines

Mode of access: Internet.

Summary Report of the Mines Branch of the Dept. of Mines

Issued also as: Sessional Paper, no.26a

Journal des mines; ou, Recueil de mémoires sur l'exploitation des mines, et sur les sciences et les arts qui s'y rapportent.

[Vol. 1-10] have no subtitle.

Annual Report of the Chief Inspector of Mines

Mode of access: Internet.