@book{33753,
	author = {Siegel, Frederic R.,},
	title = {Cities and mega-cities :},
	publisher = {Springer,},
	year = {[2019]},
	series = {SpringerBriefs in geography},
	address = {Cham, Switzerland :},
	url = {http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=1840130}
}