ebrary, Inc, & Edgerton, W. W. (2008). Recommended contract practices for underground construction. Society for Mining, Metallurgy, and Exploration.
Citazione stile Chigago Style (17a edizione)ebrary, Inc, e William W. Edgerton. Recommended Contract Practices for Underground Construction. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, 2008.
Citatione MLA (9a ed.)ebrary, Inc, e William W. Edgerton. Recommended Contract Practices for Underground Construction. Society for Mining, Metallurgy, and Exploration, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.