1964. Ninth Printing. 314 pages. Plain paper covers. Pages are bright and clear with light foxing and tanning to text block edges. Moderate thumb marking present throughout. Hinges are moderately cracked causing some looseness to covers but they remain attached. Book exchange token glued to rear cover. Paper covers have light edge-wear and corner curling with mild scuffing overall. Spine has slight tanning, rolling and creasing.