BOWLES, J. E. Engineering Porperties of Soil and their Measurement. McGraw-Hill Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBOWLES, Joseph E. Engineering Porperties of Soil and Their Measurement. McGraw-Hill Inc.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBOWLES, Joseph E. Engineering Porperties of Soil and Their Measurement. McGraw-Hill Inc.
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