@book{103946,
	author = {Greely, A. W.},
	title = {Geography of the Air},
	publisher = {Project Gutenberg,},
	year = {2020},
	address = {Salt Lake City, UT :},
	note = {Reprinted from: The National Geographic Magazine, Vol. III., PP. 41-52, May 1, 1891},
	url = {https://www.gutenberg.org/ebooks/63122}
}