APA (7 वां संस्करण) प्रशस्ति पत्र

Engle, R. F., & Lange, J. (1997). Measuring, forecasting and explaining time varying liquidity in the stock market. National Bureau of Economic Research.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Engle, Robert F., और Joe Lange. Measuring, Forecasting and Explaining Time Varying Liquidity in the Stock Market. Cambridge: National Bureau of Economic Research, 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Engle, Robert F., और Joe Lange. Measuring, Forecasting and Explaining Time Varying Liquidity in the Stock Market. National Bureau of Economic Research, 1997.

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