Clark, D. L. (1972). Plane and geodetic surveying. Volume one: Plane surveying (metric edition.). Constable & Co. Ltd.
Παραπομπή σε μορφή Chicago (17η εκδ.)Clark, Davide Late. Plane and Geodetic Surveying. Volume One: Plane Surveying. metric edition. London: Constable & Co. Ltd, 1972.
Παραπομπή σε μορφή MLA (8th εκδ.)Clark, Davide Late. Plane and Geodetic Surveying. Volume One: Plane Surveying. metric edition. Constable & Co. Ltd, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.