Gaya APA

SINGH, B, G, R, K, H, J. (2006). Tunnelling in weak rocks; Elsevier Geo-engineerng book series Volume 5 . : Elsevier.

Gaya MLA

SINGH, Bhawani;, GOEL,, Rajnish, K.;, HUDSON,, J.A. "Tunnelling in weak rocks; Elsevier Geo-engineerng book series Volume 5". : Elsevier, 2006. Buku.