APA ציטוט

Singh, B., & Goel, R. K. (2011). Engineering rock mass classification: Tunnelling, foundations, and landslides. Butterworth-Heinemann.

Chicago Style (17th ed.) Citation

Singh, Bhawani, and R. K. Goel. Engineering Rock Mass Classification: Tunnelling, Foundations, and Landslides. Burlington, Mass.: Butterworth-Heinemann, 2011.

ציטוט MLA

Singh, Bhawani, and R. K. Goel. Engineering Rock Mass Classification: Tunnelling, Foundations, and Landslides. Butterworth-Heinemann, 2011.