@book{50829,
	author = {Holbach, Paul Henri Thiry, baron d',},
	title = {The System of Nature, or, the Laws of the Moral and Physical World. Volume 1},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/The_System_of_Nature},
	url = {https://www.gutenberg.org/ebooks/8909}
}