1965. Second Edition, Revised. 142 pages. This is an ex-Library book. Green dust jacket over green cloth. Expected library inserts, stamps and inscriptions. Jacket has been laminated. Pages remain bright and clear with minimal tanning and foxing. Slight brown marks to free endpapers. Black marks to front pastedown. Thumb-marking present. Some light creasing to gutter. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Light crushing to spine ends. Minor tanning to spine and edges. Minimal marks to boards. Unclipped jacket has moderate edgewear with chips, tears and creasing. Slight tanning to spine. Noticeable rubbing to surfaces. Tape marks to panels.