American Congress on Surveying and Mapping & American Society of Photogrammetry. (1978). Proceedings of the American Congress on Surveying and Mapping Fall Convention. The Congress.
Chicago-referens (17:e uppl.)American Congress on Surveying and Mapping och American Society of Photogrammetry. Proceedings of the American Congress on Surveying and Mapping Fall Convention. Washington D.C.: The Congress, 1978.
MLA-referens (8:e uppl.)American Congress on Surveying and Mapping och American Society of Photogrammetry. Proceedings of the American Congress on Surveying and Mapping Fall Convention. The Congress, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.