HARPER COLLINS PUBLISHERS. (1992). CONCISE DICTIONARY OF QUOTATIONS. HARPER COLLINS PUBLISHERS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHARPER COLLINS PUBLISHERS. CONCISE DICTIONARY OF QUOTATIONS. LONDON: HARPER COLLINS PUBLISHERS, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHARPER COLLINS PUBLISHERS. CONCISE DICTIONARY OF QUOTATIONS. HARPER COLLINS PUBLISHERS, 1992.
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