Society for Mining, Metallurgy and Exploration, Inc, 2002. 4to. Hardcover. 2410 pages in 2 volumes. Text is bright and clean. No highlighting, writing or underlining. Diagrams and illustrations throughout. Minor wear to covers.
Craftsman Book Company, 2010. 3rd printing. Paperback. 4to. 500p. White pages unmarked. Text block bumped and slightly soiled. Binding secure. Covers moderately edge worn and rear cover scuffed. Includes disc.