APA (7e ed.) Bronvermelding
Holtz, R. D., Kovacs, W. D., & Sheahan,Thomas C. (2013). An introduction to geotechnical engineering (2nd ed.). Pearson Education.
Chicago (17e ed.) Bronvermelding
Holtz, Robert D., William D. Kovacs, en Sheahan,Thomas C. An Introduction to Geotechnical Engineering. 2nd ed. Noida: Pearson Education, 2013.
MLA (9e ed.) Bronvermelding
Holtz, Robert D., et al. An Introduction to Geotechnical Engineering. 2nd ed. Pearson Education, 2013.
Let op: Deze citaties zijn niet altijd 100% accuraat.