American Society of Civil Engineers. Pipeline Division, ebrary, Inc, Hovland, T. J., & Najafi, M. (2009). Inspecting pipeline installation. American Society of Civil Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Society of Civil Engineers. Pipeline Division, Inc ebrary, T. J. Hovland, और Mohammad Najafi. Inspecting Pipeline Installation. Reston, VA: American Society of Civil Engineers, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmerican Society of Civil Engineers. Pipeline Division, et al. Inspecting Pipeline Installation. American Society of Civil Engineers, 2009.
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