A P Kalakkad. (2017). Porkkali. Chintha Publishers.
Chicago Style aipamenaA P Kalakkad. Porkkali. Thiruvananthapuram: Chintha Publishers, 2017.
MLA aipamenaA P Kalakkad. Porkkali. Chintha Publishers, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.