Usha Menon. (2011). Ramavarma Appanthampuran. The State Institute of Languages.
シカゴスタイル引用形Usha Menon. Ramavarma Appanthampuran. Thiruvananthapuram: The State Institute of Languages, 2011.
MLA引用形式Usha Menon. Ramavarma Appanthampuran. The State Institute of Languages, 2011.
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