Lua APA (7ú heag.)
Davis, T. (2008). Geotechnical testing, observation, and documentation (2nd ed.). American Society of Civil Engineers.
Lua i Stíl Chicago (17ú heag.)
Davis, Tim. Geotechnical Testing, Observation, and Documentation. 2nd ed. Reston, VA: American Society of Civil Engineers, 2008.
Lua MLA (9ú heag.)
Davis, Tim. Geotechnical Testing, Observation, and Documentation. 2nd ed. American Society of Civil Engineers, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.