APA (7th ed.) Citation

International Congress of Photogrammetry, 12th, Ottawa, 1972, International Society for Photogrammetry, & Whitcher, G. H. (1972). Proceedings of the Twelfth International Congress of Photogrammetry: Actes du Douzieme Congress International de Photogrammetrie. Committee of the Xllth international. Congress of Photogrammetry.

Chicago Style (17th ed.) Citation

International Congress of Photogrammetry, 12th, Ottawa, 1972, International Society for Photogrammetry, and Geoffrey H. Whitcher. Proceedings of the Twelfth International Congress of Photogrammetry: Actes Du Douzieme Congress International De Photogrammetrie. Ottawa: Committee of the Xllth international. Congress of Photogrammetry, 1972.

MLA (9th ed.) Citation

International Congress of Photogrammetry, 12th, Ottawa, 1972, et al. Proceedings of the Twelfth International Congress of Photogrammetry: Actes Du Douzieme Congress International De Photogrammetrie. Committee of the Xllth international. Congress of Photogrammetry, 1972.