@book{47040,
	author = {Einstein, Albert, and Lawson, Robert W.},
	title = {Relativity : the Special and General Theory},
	publisher = {Project Gutenberg,},
	year = {2004},
	address = {Salt Lake City, UT :},
	note = {See also PG #30155 which is from a later print edition. Note especially that some of the automatically-generated formats of #5001 may not display images or equations correctly.},
	url = {https://www.gutenberg.org/ebooks/5001}
}