ഇ വാസു & E Vasu. (1986). ആമ (4th / 1st (1968).). Current Books.
Chicago Style aipamenaഇ വാസു and E Vasu. ആമ. 4th / 1st (1968). Kottayam: Current Books, 1986.
MLA aipamenaഇ വാസു and E Vasu. ആമ. 4th / 1st (1968). Current Books, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.