@book{26395,
	author = {Berry, Edward Wilber,},
	title = {The flora of the Ripley formation.},
	publisher = {U.S.Govt.Print.Off.,},
	year = {1925.},
	series = {U.S. Geological survey.  Professional paper 136},
	address = {Washington,},
	note = {At head of title: Department of the Interior.}
}