Subramanian,R. (2007). Surveying and levelling. Oxford University Press.
Chicago Style aipamenaSubramanian,R. Surveying and Levelling. New Delhi: Oxford University Press, 2007.
MLA aipamenaSubramanian,R. Surveying and Levelling. Oxford University Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.