APA (7 वां संस्करण) प्रशस्ति पत्र

Ruff, H. J. (1979). How to prosper during the coming bad years. Times Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ruff, Howard J. How to Prosper During the Coming Bad Years. New York: Times Books, 1979.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ruff, Howard J. How to Prosper During the Coming Bad Years. Times Books, 1979.

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