(1991). Deep Foundation Improvements Design, Construction And Testing Melvin I Esrig And Robert C. Bachus. American Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDeep Foundation Improvements Design, Construction And Testing Melvin I Esrig And Robert C. Bachus. American Society, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDeep Foundation Improvements Design, Construction And Testing Melvin I Esrig And Robert C. Bachus. American Society, 1991.
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