Hindu. (2000). Survey of the environment 2000. Kasturi & sons ltd.
Chicago Style aipamenaHindu. Survey of the Environment 2000. Chennai: Kasturi & sons ltd, 2000.
MLA aipamenaHindu. Survey of the Environment 2000. Kasturi & sons ltd, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.