@book{75280,
	author = {Christopherson, Robert W.},
	title = {Geosystems :},
	publisher = {Pearson/Prentice Hall,},
	year = {2009.},
	address = {Upper Saddle River, N.J. :},
	edition = {7th ed.},
	note = {Includes CD-ROM that contains animations }
}