@book{21842,
	author = {Humbbard, T, O`B. . and Lederboer , J.H..},
	title = {The Aeroplane: An Elementary Text-Book of the Principles of Dynamic Flight /},
	publisher = {Longmans Green & Co ,},
	year = {1911.},
	address = {New York :},
	edition = {1st ed. /}
}