Dyfyniad APA

Chapman, D., Metje, N., & Stark, A. (2010). Introduction to tunnel construction. Spon.

Dyfyniad Arddull Chicago

Chapman, David, Nicole Metje, and Alfred Stark. Introduction to Tunnel Construction. Oxon: Spon, 2010.

Dyfyniad MLA

Chapman, David, et al. Introduction to Tunnel Construction. Spon, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.