Symposium on Rock Classification Systems for Engineering Purposes, ASTM Committee D-18 on Soil and Rock, & Kirkaldie, L. (1988). Rock classification systems for engineering purposes. ASTM.
Chicago Style (17th ed.) CitationSymposium on Rock Classification Systems for Engineering Purposes, ASTM Committee D-18 on Soil and Rock, and Louis Kirkaldie. Rock Classification Systems for Engineering Purposes. Philadelphia, PA: ASTM, 1988.
MLA (9th ed.) CitationSymposium on Rock Classification Systems for Engineering Purposes, et al. Rock Classification Systems for Engineering Purposes. ASTM, 1988.
Warning: These citations may not always be 100% accurate.