@book{77626,
	author = {Kessler, Daniel William and Sligh, William Hume},
	title = {Physical properties of the principal commercial limestones used for building construction in the United States},
	publisher = {U.S. Govt. Print. Off.},
	year = {1927.},
	series = {[United States] Bureau of Standards. Technologic papers},
	address = {Washington}
}