Cooperative mining series /

Latest issue consulted: Bulletin 31, published 1927.

Coal resource classification system of the U.S. Geological Survey /

Mode of access: Internet.

The Far East Rand : its reefs, mines, and share values /

Mode of access: Internet.

Estatutos de la Sociedad Carbonífera y Minera Mexicana : sociedad anónima, domiciliada en México.

Mode of access: Internet.

Labor-management seminar V : education for contract administration /

Mode of access: Internet.

Labor-management seminar III : factors affecting wildcat strikes /

Mode of access: Internet.

Deuxième série d'essais sur les inflammations de poussières; essais d'inflammabilité,

Mode of access: Internet.

Premiers essais sur l'inflammabilité des poussières.

Mode of access: Internet.

Troisième série d'essais sur les inflammations de poussières; production des coups de poussières,

Mode of access: Internet.

Compilation of grievances /

Place of publication varies.

Comparative views of the most important anthracite collieries in Pennsylvania.

Mode of access: Internet.

Les houillères en 1868.

Mode of access: Internet.

Seminars on labor-management relations /

Seminars held in Washington, D.C.

A magyar korona orszagainak ásványszenei (köszenek, barnaszenek, lignitek) ... A.k.m. természettudomanyi társulattól palyadijjal jutalmazott mü. Egy átnezetes térképpel.

Mode of access: Internet.

Anthracite,

Mode of access: Internet.