Godin, S. (2003). Purple cow: Transform your business by being remarkable. Portfolio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGodin, Seth. Purple Cow: Transform Your Business by Being Remarkable. New York: Portfolio, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGodin, Seth. Purple Cow: Transform Your Business by Being Remarkable. Portfolio, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.