?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Ortiz+Meraz%2C+Omar&rft.aufirst=Omar&rft.aulast=Ortiz+Meraz&rft.date=2013&rft.title=Irregualr+Settlements+in+Mexico+City%2C+a+complex+perspective&rft.degree=Master