DE SALES, R. R. (2017). French verb drills. Mc Graw HIll Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDE SALES, R.de Roussy. French Verb Drills. Mc Graw HIll Education, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDE SALES, R.de Roussy. French Verb Drills. Mc Graw HIll Education, 2017.
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