@book{69879,
	author = {Holden, Edward S.},
	title = {Sir William Herschel: His Life and Works},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-06-03},
	url = {https://www.gutenberg.org/ebooks/29031}
}