@book{27930,
	author = {Staack, J. G.},
	title = {Spirit leveling in South Carolina, 1896-1938,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1939.},
	series = {U.S. Geological survey. Bulletin 890},
	address = {Washington,},
	note = {At head of title: U.S. Department of the Interior, Harold L. Ickes, secretary. Geological survey, W.C. Mendenhall, director.}
}