ebrary, Inc, & Edgerton, W. W. (2008). Recommended contract practices for underground construction. Society for Mining, Metallurgy, and Exploration.
Chicago-viite (17. p.)ebrary, Inc, ja William W. Edgerton. Recommended Contract Practices for Underground Construction. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, 2008.
MLA-viite (9. p.)ebrary, Inc, ja William W. Edgerton. Recommended Contract Practices for Underground Construction. Society for Mining, Metallurgy, and Exploration, 2008.
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