Gopalan A. K. (2004). Ente jeevithakadha (6th ed.). Chintha Publishers.
Chicago Style aipamenaGopalan A. K. Ente Jeevithakadha. 6th ed. Thiruvananthapuram: Chintha Publishers, 2004.
MLA aipamenaGopalan A. K. Ente Jeevithakadha. 6th ed. Chintha Publishers, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.