APA aipamena

Ceylon. Geological Survey. Administration report of the director. Govt. Press.

Chicago Style aipamena

Ceylon. Geological Survey. Administration Report of the Director. Colombo: Govt. Press.

MLA aipamena

Ceylon. Geological Survey. Administration Report of the Director. Govt. Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.