APA (7 वां संस्करण) प्रशस्ति पत्र
Hwa, E. (1981). A simultaneous equation model of price and quantity adjustement in world primary commodity markets.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hwa, Erh-Cheng. A Simultaneous Equation Model of Price and Quantity Adjustement in World Primary Commodity Markets. 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hwa, Erh-Cheng. A Simultaneous Equation Model of Price and Quantity Adjustement in World Primary Commodity Markets. 1981.
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