ASTM Committee D-18 on Soil and Rock for Engineering Purposes, Yong, R. N., & Townsend, F. C. (1981). Laboratory shear strength of soil: A symposium. American Society for Testing and Materials.
Chicago Style (17th ed.) CitationASTM Committee D-18 on Soil and Rock for Engineering Purposes, R. N. Yong, and Frank C. Townsend. Laboratory Shear Strength of Soil: A Symposium. Philadelphia, Pa.: American Society for Testing and Materials, 1981.
MLA (9th ed.) CitationASTM Committee D-18 on Soil and Rock for Engineering Purposes, et al. Laboratory Shear Strength of Soil: A Symposium. American Society for Testing and Materials, 1981.
Warning: These citations may not always be 100% accurate.