NORTHAM, R. M. (1979). Urban geography. John Wiley.
Chicago-čujuhus (17. p.)NORTHAM, Ray M. Urban Geography. New York: John Wiley, 1979.
MLA-čujuhus (9. p.)NORTHAM, Ray M. Urban Geography. John Wiley, 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.