APA (7e ed.) Bronvermelding
Das, B. M., & Sobahan, K. (2018). Principles of Geotechnical Engineering (9th ed.). Cengage Learning.
Chicago (17e ed.) Bronvermelding
Das, Braja M., en Khaled Sobahan. Principles of Geotechnical Engineering. 9th ed. New Delhi: Cengage Learning, 2018.
MLA (9e ed.) Bronvermelding
Das, Braja M., en Khaled Sobahan. Principles of Geotechnical Engineering. 9th ed. Cengage Learning, 2018.
Let op: Deze citaties zijn niet altijd 100% accuraat.