Não informado. (2000). SPE Drilling & Completion. Society of Petroleum Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. SPE Drilling & Completion. Richardson, Tex: Society of Petroleum Engineers, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. SPE Drilling & Completion. Society of Petroleum Engineers, 2000.
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