Sankara Kurup, G. (1969). Ummar Ghayamum mattu kavithakalum. Aamina Bookstall.
Chicago Style aipamenaSankara Kurup, G. Ummar Ghayamum Mattu Kavithakalum. Aamina Bookstall, 1969.
MLA aipamenaSankara Kurup, G. Ummar Ghayamum Mattu Kavithakalum. Aamina Bookstall, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.