1970. Second Edition. 187 pages. No dust jacket. This is an ex-Library book. Paper covered boards. Book has been rebound by library, with expected inserts, stamps and inscriptions. Pages are bright and clear with minor scuffing and stamping to text block edges. Minor creasing to gutters and hinges. Binding remains firm. Boards have minor corner bumping and edgewear with mild tanning and scuffing overall. Spine has light tanning with soft crushing to ends.