APA-referens (7:e uppl.)
Davis, T. (2008). Geotechnical testing, observation, and documentation (2nd ed.). American Society of Civil Engineers.
Chicago-referens (17:e uppl.)
Davis, Tim. Geotechnical Testing, Observation, and Documentation. 2nd ed. Reston, VA: American Society of Civil Engineers, 2008.
MLA-referens (9:e uppl.)
Davis, Tim. Geotechnical Testing, Observation, and Documentation. 2nd ed. American Society of Civil Engineers, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.