@book{69612,
	author = {Thoman, Richard S. and Corbin, Peter B.,},
	title = {The geography of economic activity /},
	publisher = {McGraw-Hill,},
	year = {c1974},
	series = {McGraw-Hill series in geography},
	address = {New York :},
	edition = {3rd ed.},
	note = {Includes index. }
}