APA (7th ed.) Citation

Holtz, R. D., Kovacs, W. D., & Sheahan, T. C. (2011). An introduction to geotechnical engineering (2nd ed.). Pearson.

Chicago Style (17th ed.) Citation

Holtz, R. D., William D. Kovacs, and Thomas C. Sheahan. An Introduction to Geotechnical Engineering. 2nd ed. Upper Saddle River, NJ: Pearson, 2011.

MLA (9th ed.) Citation

Holtz, R. D., et al. An Introduction to Geotechnical Engineering. 2nd ed. Pearson, 2011.