@book{11667,
	author = {Prothero, Donald R. and Dott, Robert H.,},
	title = {Evolution of the earth /},
	publisher = {McGraw-Hill,},
	year = {2002.},
	address = {Dubuque, Iowa :},
	edition = {6th ed.},
	note = {Dott's name appears first on the previous ed.},
	url = {http://www.loc.gov/catdir/description/mh021/2001030813.html}
}