1956. 4th edition. 207 pages. This is an ex-Library book. Brown dust jacket over blue cloth and gilt lettering. Ex-library copy, with expected inserts and inscriptions. Binding remains firm.Pages remain bright with minimal tanning. Boards have light edge-wear with slight rubbing to surfaces and spine is presentable with minimal crushing and tanning. Unclipped jacket. Jacket has light edge-wear with closed tears and creasing.