Dallas: Dallas Publishing House, 1959. Hardcover. 8vo. In coated dark blue and light blue cloth covered boards with faded gilt title to spine and front board. Minor bumping to spine ends. Interior is clean and bright with charts and graphs throughout. Errata sheet laid in. Minor browning to errata sheet. In blue illustrated dust jacket with white title to front and spine panels. Edgewear to dust jacket with a few closed tears and minor creasing. Index, 128 pages. TECH/040106. Very Good+ in Very Good dj.