1982. Seventh Edition, Reprint. 344 pages. No dust jacket. Green cloth covered boards. Pages remain clear with minimal tanning and foxing. Minor pencil marking to front paste-down. Cracking to hinges, no damage to end papers. Some occasional mild cracking to gutters throughout, binding remains reasonably firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends, with fraying cloth and small splits. Cloth has minor damp and dust stains. Book has a slight forward lean.