Preliminary mineral resource assessment of selected mineral deposit types in Afghanistan [electronic resource] / by Steve Ludington ... [et al.] ; prepared in cooperation with the Afghanistan Geological Survey.
Mode of access: Internet from the USGS web site. Address as of 10/22/07: http://pubs.usgs.gov/of/2007/1005/pdf/OFR2007-1005.pdf; current access via PURL.
Note
Title from PDF title screen (viewed on Feb. 27, 2007).