British Geotechnical Society. (1968). Ground Engineering. Geo Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBritish Geotechnical Society. Ground Engineering. Essex, Inglaterra: Geo Publishing, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBritish Geotechnical Society. Ground Engineering. Geo Publishing, 1968.
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