Palen, J. J. (2002). The urban world (6th ed.). Boston: McGraw-Hill.
Chicago Style CitationPalen, J. John. The Urban World. 6th ed. Boston: McGraw-Hill, 2002.
Cita MLAPalen, J. John. The Urban World. 6th ed. Boston: McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.