Bhaskaran nair. (1979). Cocoa. State institute of languages.
Chicago Style aipamenaBhaskaran nair. Cocoa. Thiruvananthapuram: State institute of languages, 1979.
MLA aipamenaBhaskaran nair. Cocoa. State institute of languages, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.