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	1.	No cover image available Geology of the New Tripoli quadrangle, Lehigh, Berks, Schuylkill, and Carbon counties, Pennsylvania / by Jack B. Epstein and Peter T. Lyttle by Epstein, Jack B Lyttle, Peter T [jt. aut] Pennsylvania. Bureau of Topographic and Geologic Survey Series: U.S. Geological Survey bulletin ; 1994 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C. : United States Government Printing Office, 1993 Availability: Items available for loan: National Library of India (1)Call number: U.S 557.3 Ep 81(pap.no.1994). Place hold Request article Save to lists
	2.	No cover image available The Accotink schist, Lake Barcroft metasandstone, and Popes Head Formation--keys to an understanding of the tectonic evolution of the northern Virginia Piedmont / by Avery Ala Drake, Jr., and Peter T. Lyttle by Drake, Avery Ala, 1927- Lyttle, Peter T [jt. aut] Series: Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington : United States Government Printing Office, 1981 Availability: Items available for loan: National Library of India (1)Call number: U.S 551.72309755291 D 789 a. Place hold Request article Save to lists

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