Houlsby, G., Wroth, C., & Denness, B. (1984). Calculation of stresses on shallow penetrometers and footings. Graham and Trotman, London; IHRDC, Boston.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHoulsby, G., C. Wroth, और B. Denness. Calculation of Stresses on Shallow Penetrometers and Footings. Graham and Trotman, London; IHRDC, Boston, 1984.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHoulsby, G., et al. Calculation of Stresses on Shallow Penetrometers and Footings. Graham and Trotman, London; IHRDC, Boston, 1984.
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