@book{58213,
	author = {Norborg, Knut,},
	title = {Proceedings of the IGU Symposium in urban geography Lund 1960 /},
	publisher = {the Royal University of lund,},
	year = {1962.},
	series = {Lund studies in geography. Ser. B, Human geography ;},
	address = {Sweden :}
}