1968. First Edition. 445 pages. This is an ex-Library book. Laminated dust jacket over blue cloth. Spanish language text. Library copy, with expected inserts, stamps and inscriptions. Pages are bright with light tanning and foxing to free endpapers and text block edges. Visible thumb-marking present throughout, with a few small nicks along text block edge. Minor dog-eared corners. Glue residue to pages 425-428. Boards have light shelf-wear with notable corner bumping and crushing to spine ends. Light tanning to spine and edges, with visible crushing to spine ends. Book has a pronounced forward lean. Tape stuck to rear board. Clipped laminated dust jacket has moderate signs of wear to edges and surfaces.