1969. Third Edition. 254 pages. No dust jacket. This is an ex-Library book. Red cloth covered boards with gilt. Library copy, with expected inserts and inscriptions. Pages remain clear with minimal tanning and foxing. Some occasional mild cracking to gutters throughout however binding remains reasonably firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Book has a slight forward lean. Gilt lettering is bright and clear.