@book{104566,
	author = {Nourse, Alan Edward,},
	title = {Sixty-Year Extension},
	publisher = {Project Gutenberg,},
	year = {2020},
	series = {Produced from Planet Stories May 1954},
	address = {Salt Lake City, UT :},
	note = {Release date is 2020-11-13},
	url = {https://www.gutenberg.org/ebooks/63742}
}