@book{97036,
	author = {United States. National Aeronautics and Space Administration},
	title = {Voyager 1 Encounters Saturn},
	publisher = {Project Gutenberg,},
	year = {2017},
	address = {Salt Lake City, UT :},
	note = {Release date is 2017-12-18},
	url = {https://www.gutenberg.org/ebooks/56205}
}