1973. Third Edition. 164 pages. No dust jacket. This is an ex-Library book. Green cloth. Expected library inserts, stamps and inscriptions. 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. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning.