Annie Johnson. (2019). K P Udayabhanu. Chintha Publishers.
Chicago Style aipamenaAnnie Johnson. K P Udayabhanu. Thiruvananthapuram: Chintha Publishers, 2019.
MLA aipamenaAnnie Johnson. K P Udayabhanu. Chintha Publishers, 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.