1970. 16th Edition, Revised. 250 pages. Pictorial dust jacket over blue paper covered boards. Black and white photographs throughout. Binding remains firm. Pages and photographs are lightly tanned throughout. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges with crushing to spine ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Light tanning to spine and edges. Water stain to rear panel.