@book{71730,
	author = {Brown, Rosel George, and Varga, Mel},
	title = {Step IV},
	publisher = {Project Gutenberg,},
	year = {2010},
	series = {Produced from Amazing Stories June 1960.},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-01-07},
	url = {https://www.gutenberg.org/ebooks/30884}
}