Lua APA (7ú heag.)
Schofield,W, & M.Breach. (2007). Engineering Surveying (6th ed.). Spon Presss.
Lua i Stíl Chicago (17ú heag.)
Schofield,W, agus M.Breach. Engineering Surveying. 6th ed. New York: Spon Presss, 2007.
Lua MLA (9ú heag.)
Schofield,W, agus M.Breach. Engineering Surveying. 6th ed. Spon Presss, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.