Lua APA (7ú heag.)
Das, B. M. (2007). Principles of foundation engineering: Adapted international student edition (6th ed.). Thomson.
Lua i Stíl Chicago (17ú heag.)
Das, Braja M. Principles of Foundation Engineering: Adapted International Student Edition. 6th ed. Singapore: Thomson, 2007.
Lua MLA (9ú heag.)
Das, Braja M. Principles of Foundation Engineering: Adapted International Student Edition. 6th ed. Thomson, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.