O'Looney, J. (1997). Beyond maps: GIS and decision making in local government. ICMA.
Lua i Stíl Chicago (17ú heag.)O'Looney, John. Beyond Maps: GIS and Decision Making in Local Government. Washington,DC: ICMA, 1997.
Lua MLA (8ú heag.)O'Looney, John. Beyond Maps: GIS and Decision Making in Local Government. ICMA, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.