Bartke, W. (1977). Oil in the People's Republic of China: Industry structure, production, exports. C. Hurst and Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBartke, Wolfgang. Oil in the People's Republic of China: Industry Structure, Production, Exports. C. Hurst and Co, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBartke, Wolfgang. Oil in the People's Republic of China: Industry Structure, Production, Exports. C. Hurst and Co, 1977.
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