@book{68972,
	author = {Bova, Ben, and Schelling, George,},
	title = {The Next Logical Step},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Produced from Analog Science Fact & Fiction May 1962.},
	url = {https://www.gutenberg.org/ebooks/28063}
}