Cambridge: Harvard University Press, 1968. Fourth Printing. Octavo, 216 pages. In Very Good minus condition with a Good dust jacket. Dust jacket protected with a mylar covering. Spine black with white lettering. Exterior has moderate wear including slight scuffing to the joints/edges and few chips to the head/tail edges. Boards have slight wear. Text block has slight plus wear including slight age toning and sparse finger marks to the edges. Slight sticker residue mark to the front end paper. Illustrated. Fourth printing. NOTE: Shelved in Locked Annex, Column Y. More