@book{71568,
	author = {Spinrad, Norman, and Summers, Leo,},
	title = {Subjectivity},
	publisher = {Project Gutenberg,},
	year = {2009},
	series = {Produced from Analog Science Fact & Fiction January 1964.},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-12-21},
	url = {https://www.gutenberg.org/ebooks/30722}
}