De SILVA, K. (1977). Sri Lanka: A survey. University press of Hawai.
Chicago Style (17th ed.) ZitazioaDe SILVA, K.M. Sri Lanka: A Survey. Honolulu: University press of Hawai, 1977.
MLA (9th ed.) ZitazioaDe SILVA, K.M. Sri Lanka: A Survey. University press of Hawai, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.