APA (7th ed.) Zitazioa
Roy,S.K. (2010). Fundamentals of surveying (2nd ed.). PHI Learning.
Chicago Style (17th ed.) Zitazioa
Roy,S.K. Fundamentals of Surveying. 2nd ed. New Delhi: PHI Learning, 2010.
MLA (9th ed.) Zitazioa
Roy,S.K. Fundamentals of Surveying. 2nd ed. PHI Learning, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.