Smith, M. J. D. (2018). Geospatial Analysis. Crown.
Lua i Stíl Chicago (17ú heag.)Smith, M J D. Geospatial Analysis. UK: Crown, 2018.
Lua MLA (9ú heag.)Smith, M J D. Geospatial Analysis. Crown, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.