@book{18025,
	author = {Trewartha, Glenn Thomas, and Robinson, Arthur Howard,},
	title = {Elements of geography},
	publisher = {McGraw-Hill},
	year = {[1967]},
	series = {McGraw-Hill series in geography},
	address = {New York,},
	edition = {5th ed.},
	note = {Comprehensive revision of Elements of geography, by V. C. Finch and G. T. Trewartha.}
}