@book{26380,
	author = {Sack, Robert David.},
	title = {Human territoriality :},
	publisher = {Cambridge University Press,},
	year = {c1986.},
	series = {Cambridge studies in historical geography },
	address = {Cambridge,},
	note = {Includes indexes.},
	url = {http://www.loc.gov/catdir/description/cam031/85030812.html}
}