Cambridge, Massachusetts: The M. I. T. Press, 1971. Soft Cover. Long 4to. Very Good. Item #064273
Pages crisp and clean except for a prior owner's name on the first page and a little spotting around the outside edges; binding square, spine uncreased; soft cover has a vertical crease at the left rear, some rubbing along the sides of the spine, around the edges, and at corners and spine ends, with occasional small chips at the edges and small spots of surface wear near the spine on front and back, otherwise clean and attractive. 159pp., copiously illustrated.