@book{29580,
	author = {Hill, Walter Edward,},
	title = {Methods of chemical analysis for carbonate and silicate rocks /},
	publisher = {s.n.],},
	year = {1961.},
	series = {Kansas. State Geological Survey. Bulletin 152, pt. 1. 1961 Reports of studies, pt. 1},
	address = {Lawrence :}
}