1980. 5th edition, 28th printing. 295 pages. No dust jacket. Red cloth with gilt titles to spine. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Previous owner's inscription to front pastedown. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Boards a little rubbed and marked overall. Gilt is bright. Creasing to spine.