American Society of Photogrammetry, American Congress on Surveying and Mapping, & Digital Terrain Models Symposium. (1978). Proceedings of the Digital Terrain Models (DTM) SymposiumSt Louis, Missouri, May 9-11, 1978. American Society of Photogrammetry.
Chicago-referens (17:e uppl.)American Society of Photogrammetry, American Congress on Surveying and Mapping, och Digital Terrain Models Symposium. Proceedings of the Digital Terrain Models (DTM) SymposiumSt Louis, Missouri, May 9-11, 1978. Falls Church, Virginia: American Society of Photogrammetry, 1978.
MLA-referens (9:e uppl.)American Society of Photogrammetry, et al. Proceedings of the Digital Terrain Models (DTM) SymposiumSt Louis, Missouri, May 9-11, 1978. American Society of Photogrammetry, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.