Bonnar, J. T., & Swamy, P. N. N. (1974). Valarchayum roopavum. State Institute of Languages.
シカゴスタイル引用形Bonnar, J T., , P N Narayana Swamy. Valarchayum Roopavum. Trivandrum: State Institute of Languages, 1974.
MLA引用形式Bonnar, J T., , P N Narayana Swamy. Valarchayum Roopavum. State Institute of Languages, 1974.
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