1956. Second Revised Edition. 134 pages. Paperback book with plain cover and dust jacket. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Paper cover has mild edge-wear with light rubbing and creasing. Some light marking and tanning. Unclipped jacket has light edge-wear with minor tears and chipping. Mild rubbing and marking.