LEVY, J. M. (1985). Urban And Metropolitan Economics John M. Levy. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)LEVY, John M. Urban And Metropolitan Economics John M. Levy. McGraw-Hill, 1985.
Lua MLA (8ú heag.)LEVY, John M. Urban And Metropolitan Economics John M. Levy. McGraw-Hill, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.