Kurup,R S. (1994). Janasankahya vidyabhyasam: Population education. State institute of languages.
Chicago Style aipamenaKurup,R S. Janasankahya Vidyabhyasam: Population Education. State institute of languages, 1994.
MLA aipamenaKurup,R S. Janasankahya Vidyabhyasam: Population Education. State institute of languages, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.