Dyfyniad APA

Subramanian,R. (2007). Surveying and levelling. Oxford University Press.

Dyfyniad Arddull Chicago

Subramanian,R. Surveying and Levelling. New Delhi: Oxford University Press, 2007.

Dyfyniad MLA

Subramanian,R. Surveying and Levelling. Oxford University Press, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.