O'Sullivan, A. Urban economics (Ninth edition.).
Chicago-čujuhus (17. p.)O'Sullivan, Arthur. Urban Economics. Ninth edition.
MLA-čujuhus (9. p.)O'Sullivan, Arthur. Urban Economics. Ninth edition.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.