@book{24533,
	author = {Swallow, G. C. and Hawn, F.},
	title = {The rocks of Kansas /},
	publisher = {Geo. Knapp, printers,},
	year = {1858.},
	address = {St. Louis, Mo. :},
	note = {"Ext. from Trans. Acad. Sci., St. Louis, Vol. I, no. 2."}
}