@book{57608,
	author = {Bullitt, Alexander Clark,},
	title = {Rambles in the Mammoth Cave, during the Year 1844 :},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-07-06},
	url = {https://www.gutenberg.org/ebooks/16220}
}