1980. First Published. 160 pages. This is an ex-Library book. Yellow paper covers. Expected library inserts, stamps and inscriptions. Pages are bright and clear. Light marking to text block edges. Binding at spine is detached from front cover. Binding otherwise remains firm. Paper covers have moderate edge-wear and corner curling with visible scuffing overall. Dewey code taped to spine and boards. Spine has light sunning with soft crushing to ends.