Bonnar, J. T., & Swamy, P. N. N. (1974). Valarchayum roopavum. State Institute of Languages.
Dyfyniad Arddull ChicagoBonnar, J T., and P N Narayana Swamy. Valarchayum Roopavum. Trivandrum: State Institute of Languages, 1974.
Dyfyniad MLABonnar, J T., and P N Narayana Swamy. Valarchayum Roopavum. State Institute of Languages, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.