ESRI. (2001). ArcGIS 3D Analyst, v.2.
Lua i Stíl Chicago (17ú heag.)ESRI. ArcGIS 3D Analyst, V.2. USA, 2001.
Lua MLA (8ú heag.)ESRI. ArcGIS 3D Analyst, V.2. 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
ESRI. (2001). ArcGIS 3D Analyst, v.2.
Lua i Stíl Chicago (17ú heag.)ESRI. ArcGIS 3D Analyst, V.2. USA, 2001.
Lua MLA (8ú heag.)ESRI. ArcGIS 3D Analyst, V.2. 2001.