@book{88820,
	author = {Langley, S. P. and Manly, Charles M.},
	title = {Langley Memoir on Mechanical Flight, Parts I and II :},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-01-17},
	url = {https://www.gutenberg.org/ebooks/47981}
}