00678cam a2200193 4500 148940138 TxAuBib 20091208120000.0 130827s2013||||||||||||||||||||||||eng|u 43576 Project Gutenberg PGUSA eng TxAuBib Spence, William. An Introduction to Entomology [Gutenberg] : Vol. I (of 4) : or Elements of the Natural History of the Insects / William Spence and William Kirby. Project Gutenberg, 2013. Freely available. Electronic text. Kirby, William. http://www.gutenberg.org/ebooks/43576 http://www.gutenberg.org/license Rights