@book{81974,
	author = {Johnson, V. E.},
	title = {The Theory and Practice of Model Aeroplaning},
	publisher = {Project Gutenberg,},
	year = {2012},
	address = {Salt Lake City, UT :},
	note = {Release date is 2012-10-21},
	url = {https://www.gutenberg.org/ebooks/41135}
}