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Birmingham Coal Company (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Birmingham Coal Company" in English language version.

refsWebsite
Global rank English rank
2books.google.com
3rd place
3rd place
1psu.edu
207th place
136th place

books.google.com

  • Chance, Henry Martyn (1884). Report of Progress... pp. 175–179. Retrieved 2008-09-08.
  • Furman, H.V.; A.E. Swain (June 11, 1881). "Underground Haulage in the Coal Mines of Pennsylvania". The Mining and Engineering Journal. 31 (24): 400.

psu.edu

collection1.libraries.psu.edu