Gordon, R. H. (1989). Notes on cash-flow taxation. Country Economics Department, World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGordon, Roger H. Notes on Cash-flow Taxation. Washington, D.C: Country Economics Department, World Bank, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGordon, Roger H. Notes on Cash-flow Taxation. Country Economics Department, World Bank, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.