@book{99721,
	author = {Ferris, J. R., Lieutenant},
	title = {Bombers' Training, and Application of Same in Trench Warfare},
	publisher = {Project Gutenberg,},
	year = {2019},
	address = {Salt Lake City, UT :},
	note = {Release date is 2019-02-15},
	url = {https://www.gutenberg.org/ebooks/58895}
}