@book{63657,
	author = {Harrison, Harry,},
	title = {The K-Factor},
	publisher = {Project Gutenberg,},
	year = {2007},
	series = {Produced from Analog December 1960.},
	address = {Salt Lake City, UT :},
	note = {Release date is 2007-09-08},
	url = {https://www.gutenberg.org/ebooks/22540}
}