LEVENBACH, H. (1981). The Beginning Forecaster The Forecasting Process Through Data Analysis Hans Levenbach And James P.cleary. Lifetime Learning Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLEVENBACH, Hans. The Beginning Forecaster The Forecasting Process Through Data Analysis Hans Levenbach And James P.cleary. Lifetime Learning Publications, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLEVENBACH, Hans. The Beginning Forecaster The Forecasting Process Through Data Analysis Hans Levenbach And James P.cleary. Lifetime Learning Publications, 1981.
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