1965. Second Edition. 144 pages. No dust jacket. This is an ex-Library book. Paper covered boards. Library copy, with stamping to front pastedown. Pages are mildly tanned with visible foxing. Mild cracking to front hinge, however binding remains firm. Mild water staining to pages throughout. Boards have mild edgewear with corner crushing and heavy marking to boards. Mild tanning to spine, which has mild crushing to ends. Book has forward lean. Boards are mildly warped.