Holtz, R. D., Kovacs, W. D., & Sheahan, T. C. An introduction to geotechnical engineering (2a ed.).
芝加哥风格引文Holtz, Robert D., William D. Kovacs, 与 Thomas C. Sheahan. An Introduction to Geotechnical Engineering. 2a ed.
MLA引文Holtz, Robert D., et al. An Introduction to Geotechnical Engineering. 2a ed.
警告：这些引文格式不一定是100％准确.