Graph Hains. (1972). Vaidyutha prathishtaapanam. Kerala Bhasha Institute.
Chicago Style aipamenaGraph Hains. Vaidyutha Prathishtaapanam. Kerala Bhasha Institute, 1972.
MLA aipamenaGraph Hains. Vaidyutha Prathishtaapanam. Kerala Bhasha Institute, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.