RIES AL. (2004). ORIGIN OF BRANDS: DISCOVER THE NATURAL LAWS...SURVIVAL. HARPER COLLINS PUBLISHERS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRIES AL. ORIGIN OF BRANDS: DISCOVER THE NATURAL LAWS...SURVIVAL. NEW YORK: HARPER COLLINS PUBLISHERS, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRIES AL. ORIGIN OF BRANDS: DISCOVER THE NATURAL LAWS...SURVIVAL. HARPER COLLINS PUBLISHERS, 2004.
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