00556cam a2200193 4500 91716042 TxAuBib 20061207120000.0 100313s2010||||||||||||||||||||||||eng|u 31627 Project Gutenberg PGUSA eng TxAuBib Hull, Edward. Volcanoes: Past and Present [Gutenberg] / by Edward Hull. Project Gutenberg, 2010. Project Gutenberg. Freely available. Electronic text. http://www.gutenberg.org/license Rights TXTLL