The mineral industry of Pennsylvania [electronic resource].
Published
[Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines]
Frequency
Annual
Notes
Description based on: 1994; title from title screen (viewed on June 17, 2004).
Issued by: U.S. Dept. of the Interior, Bureau of Mines, 1994-1996; by: Geological Survey, 1997-
Type of File
PDF format
Other formats
Online version of the paper version.
Pennsylvania ... annual estimate
Format
Journals & Newspapers / Online
Language
English
Added to Catalog
May 03, 2006
System details note
Mode of access: Internet at the USGS web site. Address as of 6/22/04: http://minerals.usgs.gov/minerals/pubs/state/pa.html#myb; current access available via PURL.