Geology and mineral resources of Northeastern Franklin County, Pennsylvania

समान संसाधन

• Map of Calvert county showing the geological formations
  द्वारा: Clark William Bullock, और अन्य
  प्रकाशित: (1902)
• Atlas to accompany part 4, Annual Report of the Geological Survey of Pennsylvania for 1886
  द्वारा: Lesley J. Peter
  प्रकाशित: (cop. 1888)
• Map showing intensity of mineralization by contours
  द्वारा: Estados Unidos Geological Survey
  प्रकाशित: ([19--])
• Geologic sections of Quincy mine, T. 55 N., R. 34 W., Houghton County, Mich.
  द्वारा: Estados Unidos Geological Survey
  प्रकाशित: ([19--])
• Resources of the Americas for war end peace products of 20 republics help to defeat the axis.
  द्वारा: Petruccelli A., और अन्य
  प्रकाशित: ([ca 1940])