Ramakrishnayyar, R. (1974). Polytechnique bhautikam. Institute of languages.
シカゴスタイル引用形Ramakrishnayyar, R. Polytechnique Bhautikam. Tvm: Institute of languages, 1974.
MLA引用形式Ramakrishnayyar, R. Polytechnique Bhautikam. Institute of languages, 1974.
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