Gyger. Improvised Cities. University of Pittsburgh Press.
Chicago-čujuhus (17. p.)Gyger. Improvised Cities. University of Pittsburgh Press.
MLA-čujuhus (9. p.)Gyger. Improvised Cities. University of Pittsburgh Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.