Dyfyniad APA
ebrary, Inc, & Edgerton, W. W. (2008). Recommended contract practices for underground construction. Society for Mining, Metallurgy, and Exploration.
Dyfyniad Arddull Chicago
ebrary, Inc, and William W. Edgerton. Recommended Contract Practices for Underground Construction. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, 2008.
Dyfyniad MLA
ebrary, Inc, and William W. Edgerton. Recommended Contract Practices for Underground Construction. Society for Mining, Metallurgy, and Exploration, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.