van der Ploeg, F. (2010). Aggressive oil extraction and precautionary saving: Coping with volatility. Elsevier.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रvan der Ploeg, F. Aggressive Oil Extraction and Precautionary Saving: Coping with Volatility. Elsevier, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रvan der Ploeg, F. Aggressive Oil Extraction and Precautionary Saving: Coping with Volatility. Elsevier, 2010.
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