@book{68723,
	author = {Engels, Friedrich, and Marx, Karl,},
	title = {Feuerbach},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-01-15},
	url = {https://www.gutenberg.org/ebooks/27814}
}