@book{17456,
	author = {Longwell, Chester R. and Knopf, Adolph,},
	title = {Outlines of physical geology /},
	publisher = {J. Wiley & Sons, Inc.,},
	year = {1937.},
	address = {New York :},
	note = {Based on the author's "Textbook of physical geology" published in 1982. cf. Pref.}
}