@book{239490,
	author = {Edison, Theodore M.},
	title = {Discussion on Edison's Monoid Theory},
	publisher = {Project Gutenberg,},
	year = {2003},
	note = {Recorded July 26, 1970 at Glenmont (Edison's home), 2nd Floor Library, West Orange, New Jersey.},
	url = {http://www.gutenberg.org/ebooks/10235}
}