Wilkinson, R. G., Pickett, K., & Chafer, C. (2011). The spirit level: Why greater equality makes societies stronger. Tantor Media, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilkinson, Richard G., Kate Pickett, और Clive Chafer. The Spirit Level: Why Greater Equality Makes Societies Stronger. [Old Saybrook, Ct.]: Tantor Media, Inc., 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWilkinson, Richard G., et al. The Spirit Level: Why Greater Equality Makes Societies Stronger. Tantor Media, Inc., 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.