Technical papers of the American Congress of Surveying and Mapping, fall technical meeting Niagara Fall, NY, Oct. 7-10, 1980 (1980)
Nebent.: Rainbow 80. - 1979 u.d.T.: American Society of Photogrammetry: Joint proceedings of the American Society of Photogrammetry and the American Congress on Surveying and Mapping. - 1981 u.d.T.: American Congress on Surveying and Mapping: Technical papers of the American Congress on Surveying and Mapping