Singh, B., & Goel, R. K. (1999). Rock mass classification: A practical approach in civil engineering. Amsterdam New York: Elsevier.
Chicago Style CitationSingh, Bhawani, and R. K. Goel. Rock Mass Classification: A Practical Approach in Civil Engineering. Amsterdam New York: Elsevier, 1999.
MLA CitationSingh, Bhawani, and R. K. Goel. Rock Mass Classification: A Practical Approach in Civil Engineering. Amsterdam New York: Elsevier, 1999.
Warning: These citations may not always be 100% accurate.