Lua APA (7ú heag.)
Singh, P. (2013). A textbook of engineering and general geology (8th rev ed.). S.K.Kataria & Sons.
Lua i Stíl Chicago (17ú heag.)
Singh, Prabin. A Textbook of Engineering and General Geology. 8th rev ed. New Delhi: S.K.Kataria & Sons, 2013.
Lua MLA (9ú heag.)
Singh, Prabin. A Textbook of Engineering and General Geology. 8th rev ed. S.K.Kataria & Sons, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.