@book{71502,
	author = {Burgess, Gelett,},
	title = {The Purple Cow!},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Purple_Cow},
	url = {https://www.gutenberg.org/ebooks/30656}
}