Palen, J. J. (1997). The urban world. McGraw-Hill.
Trích dẫn kiểu ChicagoPalen, J. John. The Urban World. McGraw-Hill, 1997.
Deismireacht MLAPalen, J. John. The Urban World. McGraw-Hill, 1997.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.