Mine drainage Proceedings of the First International Mine Drainage Symposium, Denver, Colorado, May 1979
Sanfrancisco, CA: M. Freeman Publications, 1979. First Edition (?); Second Printing. Softcover. Unmarked, except for complimentary stamp on inside cover page, and on top edge. ; Book Description; Spine has no signs of creasing. Pages are clean and not marred by notes or folds. Covers are square with minor wear..... More