Frank, R. H. (2013). Falling behind: How rising inequality harms the middle class. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrank, Robert H. Falling Behind: How Rising Inequality Harms the Middle Class. Berkeley: University of California Press, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFrank, Robert H. Falling Behind: How Rising Inequality Harms the Middle Class. University of California Press, 2013.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.