00542cam a2200181 4500 100360862 TxAuBib 20070420120000.0 110808s2011||||||||||||||||||||||||eng|u 37009 Project Gutenberg PGUSA eng TxAuBib Weed, Clarence M. Butterflies Worth Knowing [Gutenberg] / by Clarence M. Weed. Project Gutenberg, 2011. Project Gutenberg. Freely available. Electronic text. http://www.gutenberg.org/license Rights