APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, & Wagner, M. (2012). Entrepreneurship, innovation and sustainability. Greenleaf Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Marcus Wagner. Entrepreneurship, Innovation and Sustainability. Sheffield: Greenleaf Pub., 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Marcus Wagner. Entrepreneurship, Innovation and Sustainability. Greenleaf Pub., 2012.
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