@book{87703,
	author = {Putnam, William Clement, and Birkeland, Peter W.},
	title = {Putnam's Geology /},
	publisher = {Oxford University Press,},
	year = {1978.},
	address = {New York :},
	edition = {3rd ed.},
	note = {Includes index.},
	url = {http://catalog.hathitrust.org/api/volumes/oclc/3072497.html}
}