@book{29624,
	author = {Harbaugh, John Warvelle,},
	title = {Relative ages of visibly crystalline calcite in late Paleozoic limestones /},
	publisher = {[s.n.],},
	year = {1961.},
	series = {Kansas.  State Geological Survey.  Bulletin 152, pt. 4.  1961 Reports of studies, pt. 4},
	address = {Lawrence :},
	note = {Cover title.}
}