(1981). Laboratory shear strength of soil: A symposium sponsored by ASTM Committee D-18 on Soil and Rock for Engineering Purposes. Chicago, Ill. 25 June 1980. ASTM.
Chicago-Zitierstil (17. Ausg.)Laboratory Shear Strength of Soil: A Symposium Sponsored by ASTM Committee D-18 on Soil and Rock for Engineering Purposes. Chicago, Ill. 25 June 1980. Philadelphia, Pa: ASTM, 1981.
MLA-Zitierstil (9. Ausg.)Laboratory Shear Strength of Soil: A Symposium Sponsored by ASTM Committee D-18 on Soil and Rock for Engineering Purposes. Chicago, Ill. 25 June 1980. ASTM, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.