Holtz, R. D., & Holtz, R. D. (1988). Geosynthetics for soil improvement: Proceedings of the symposium sponsored by the Geotechnical Engineering Division of the American Society of Civil Engineers in conjunction with the ASCE National Convention, Nashville, Tennessee, 9 May 1988. New York: ASCE.
Παραπομπή Chicago StyleHoltz, R. D., and Robert D. Holtz. Geosynthetics for Soil Improvement: Proceedings of the Symposium Sponsored By the Geotechnical Engineering Division of the American Society of Civil Engineers in Conjunction With the ASCE National Convention, Nashville, Tennessee, 9 May 1988. New York: ASCE, 1988.
Παραπομπή MLAHoltz, R. D., and Robert D. Holtz. Geosynthetics for Soil Improvement: Proceedings of the Symposium Sponsored By the Geotechnical Engineering Division of the American Society of Civil Engineers in Conjunction With the ASCE National Convention, Nashville, Tennessee, 9 May 1988. New York: ASCE, 1988.