@book{29136,
	author = {Olson, O. P.},
	title = {The genus Baryspira (Mollusca) in New Zealand /},
	publisher = {New Zealand Dept. of Scientific and Industrial Research, New Zealand Geological Survey,},
	year = {1956.},
	series = {Paleontological bulletin ;},
	address = {Wellington :},
	note = {"February 1956."}
}