00543cam a2200181 4500 384693464 TxAuBib 20180613120000.0 190611s2019||||||||||||||||||||||||eng|u 59737 Project Gutenberg PGUSA eng TxAuBib Keller, Walter David. The Common Rocks and Minerals of Missouri [Gutenberg] / Walter David Keller. Project Gutenberg, 2019. Public domain in the USA. Text. http://www.gutenberg.org/ebooks/59737 TXTLL