@book{102229,
	author = {Wyckoff, Don G., and Peterson, D. E.},
	title = {Spiro Mounds: Prehistoric Gateway ... Present-Day Enigma},
	publisher = {Project Gutenberg,},
	year = {2020},
	address = {Salt Lake City, UT :},
	note = {Release date is 2020-02-14},
	url = {https://www.gutenberg.org/ebooks/61403}
}