THIRD EDITION. 12mo. (7.8 x 4.7 inches). xii, 395pp. A very good, clean copy in the original publishers paper covered boards. Pages untrimmed. Chipping to the edges of the original printed paper label on spine. Previous owner has covered the spine and board edges with white paper, which is chipped and showing loss which allows the original printed label to be seen. Board edges a bit rubbed and bumped. An uncommon survivor in any condition but in the original publishers boards even more so.