1969. 10th edition. 135 pages. Green pictorial dust jacket over green cloth. Pages are clean and bright with a firm binding. Endpapers and page edges are lightly tanned and foxed. Boards are a little rub worn with slight shelf wear to corners, spine and edges. Corners are a little bumped and spine ends are a mildly crushed. Tanning to spine and edges. Book has a forward lean. Light wear to unclipped dust jacket with tears, nicks and creases to spine, edge and corners. Tanning to spine and edges.