1960. No Edition Remarks. 145 pages. No dust jacket. This is an ex-Library book. Green cloth with gilt lettering. Black and white graphs throughout. Expected library inserts, stamps and inscriptions. Pages are lightly tanned, but text remains clear. Binding is firm. Boards have moderate shelf-wear, with noticeable corner bumping and some scuffing to edges. Spine ends are moderately crushed and split, with fraying to head. Light rubbing and scuffing overall, with noticeable marks to front board. Gilt remains bright. Book has a slight forward lean.