@book{307828,
	author = {Easton, Richard D., and Frazier, Eric F.,},
	title = {GPS declassified :},
	publisher = {Potomac Books, an imprint of the University of Nebraska Press,},
	year = {2013.},
	address = {Lincoln, Nebraska :},
	url = {https://ebookcentral.proquest.com/lib/kuct-ebooks/detail.action?docID=1389278}
}