@book{27708,
	author = {Woodring, W. P. and Stewart, Ralph,},
	title = {Geology of the Kettleman Hills oil field, California;},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1940.},
	address = {Washington,},
	note = {At head of title: United States Dept. of the Interior, Harold L. Ickes, secretary.  Geological Survey, W. C. Mendenhall, director.}
}