Cita APA

(1980). Technical papers of the American Congress on Surveying and Mapping. -- 40 th annual meeting. Falls Church, Va.: The Congress.

Citación estilo Chicago

Technical Papers of the American Congress On Surveying and Mapping. -- 40 Th Annual Meeting. Falls Church, Va.: The Congress, 1980.

Cita MLA

Technical Papers of the American Congress On Surveying and Mapping. -- 40 Th Annual Meeting. Falls Church, Va.: The Congress, 1980.