Dowd, D. F. (1962). Modern economic problems in historical perspective. Heath.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDowd, Douglas Fitzgerald. Modern Economic Problems in Historical Perspective. Boston: Heath, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDowd, Douglas Fitzgerald. Modern Economic Problems in Historical Perspective. Heath, 1962.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.