APA (7 वां संस्करण) प्रशस्ति पत्र
Richards, G. (2009). Spin-outs: Creating businesses from university intellectual property. Harriman House Limited.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Richards, Graham. Spin-outs: Creating Businesses from University Intellectual Property. Hampshire: Harriman House Limited, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Richards, Graham. Spin-outs: Creating Businesses from University Intellectual Property. Harriman House Limited, 2009.
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