@book{28964,
	author = {Andrews, Henry N.},
	title = {Index of generic names of fossil plants, 1820-1950, based on the Compendium index of paleobotany of the U.S. Geological Survey.},
	publisher = {U. S. Govt. Print. Off.,},
	year = {1955.},
	series = {[United States.] Geological Survey. Bulletin},
	address = {Washington,}
}