@book{26074,
	author = {Stevenson, John J. and American Philosophical Society},
	title = {Interrelations of the fossil fuels,},
	publisher = {New era printing company,},
	year = {1916-1921.},
	address = {Lancaster, Pa.,},
	note = {"Reprinted from Proceedings of the American philosophical society, v. 55, 1916; v. 56, 1917; v. 57, 1918; v. 59, 1921."}
}