@book{27449,
	author = {Woodring, W. P.},
	title = {Lower Pliocene mollusks and echinoids from the Los Angeles basin, California and their inferred environment,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1938.},
	address = {Washington,},
	note = {At head of title: United States Department of the Interior.}
}