@book{61963,
	author = {Piper, H. Beam, and Schoenherr, John,},
	title = {Space Viking},
	publisher = {Project Gutenberg,},
	year = {2007},
	series = {Produced from Analog Science Fact—Science Fiction November 1962, December 1962, January 1963, and February 1963.},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Space_Viking},
	url = {https://www.gutenberg.org/ebooks/20728}
}