(1976). Proceedings of the American Congress on Surveying and Mapping, 36th Annual Meeting, February 22-28, 1976, Washington, D.C. Falls Church, VA: American Congress on Surveying and Mapping.
Παραπομπή Chicago StyleProceedings of the American Congress On Surveying and Mapping, 36th Annual Meeting, February 22-28, 1976, Washington, D.C. Falls Church, VA: American Congress on Surveying and Mapping, 1976.
Παραπομπή MLAProceedings of the American Congress On Surveying and Mapping, 36th Annual Meeting, February 22-28, 1976, Washington, D.C. Falls Church, VA: American Congress on Surveying and Mapping, 1976.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.