@book{106335,
	author = {Hellman, Hal,},
	title = {Lasers},
	publisher = {Project Gutenberg,},
	year = {2021},
	series = {Understanding the atom},
	address = {Salt Lake City, UT :},
	note = {Release date is 2021-06-04},
	url = {https://www.gutenberg.org/ebooks/65512}
}