Based upon work done in cooperation with the Raven Run Coal Co.Bibliography: p. 25.Mode of access: Internet
"Reprinted from Easy lesson department of the Colliery engineer."Mode of access: Internet
"Published June, 1923, revised edition printed 1924.""Selected anthracite bibliography": p. [163]-16...
Based on work done under cooperative agreement between Bureau of Mines and Eastern Associated Coal C...
Based upon work done under a cooperative agreement between the Bureau of Mines and the Raven Run Coa...
Based upon work done in cooperation with the Glen Alden Coal Company.Bibliography: p. 12.Mode of acc...
Based on work done in cooperation with the Glen Alden Coal Company.Includes bibliographical referenc...
"April 1968"--Cover.Performed in cooperation with the Glen Alden Coal Corp. (now Blue Coal Corp.).Bi...
At head of title: ... Department of commerce. Herbert Hoover, secretary. Bureau of mines. Scott Turn...
At head of title: Before the United States Anthracite Coal Commission.Mode of access: Internet
Appendices: A. Mine laws.--B. A glossary of mining terms.--C. Production and distribution of anthrac...
"Interior - Bureau of Mines, Pittsburgh, Pa."--P. 12."June 1951."Mode of access: Internet
Mode of access: Internet.Compiled 19__- by the Dept. of Mines (later Dept. of Mines and Mineral Indu...
"Based upon work done under an agreement between the University of Alabama and the Bureau of Mines."...
"Int. - Bu. of Mines, Pgh., Pa."--p. 13."October 1952."Includes bibliographical references.Mode of a...
Mode of access: Internet.Continued by: Pennsylvania. Inspectors of Coal Mines. Reports of the Inspec...
"Reprinted from Easy lesson department of the Colliery engineer."Mode of access: Internet
"Published June, 1923, revised edition printed 1924.""Selected anthracite bibliography": p. [163]-16...
Based on work done under cooperative agreement between Bureau of Mines and Eastern Associated Coal C...
Based upon work done under a cooperative agreement between the Bureau of Mines and the Raven Run Coa...
Based upon work done in cooperation with the Glen Alden Coal Company.Bibliography: p. 12.Mode of acc...
Based on work done in cooperation with the Glen Alden Coal Company.Includes bibliographical referenc...
"April 1968"--Cover.Performed in cooperation with the Glen Alden Coal Corp. (now Blue Coal Corp.).Bi...
At head of title: ... Department of commerce. Herbert Hoover, secretary. Bureau of mines. Scott Turn...
At head of title: Before the United States Anthracite Coal Commission.Mode of access: Internet
Appendices: A. Mine laws.--B. A glossary of mining terms.--C. Production and distribution of anthrac...
"Interior - Bureau of Mines, Pittsburgh, Pa."--P. 12."June 1951."Mode of access: Internet
Mode of access: Internet.Compiled 19__- by the Dept. of Mines (later Dept. of Mines and Mineral Indu...
"Based upon work done under an agreement between the University of Alabama and the Bureau of Mines."...
"Int. - Bu. of Mines, Pgh., Pa."--p. 13."October 1952."Includes bibliographical references.Mode of a...
Mode of access: Internet.Continued by: Pennsylvania. Inspectors of Coal Mines. Reports of the Inspec...
"Reprinted from Easy lesson department of the Colliery engineer."Mode of access: Internet
"Published June, 1923, revised edition printed 1924.""Selected anthracite bibliography": p. [163]-16...
Based on work done under cooperative agreement between Bureau of Mines and Eastern Associated Coal C...