VGC.Hodder and Stoughton,1976.First UK edition-first impression.Blue hardback(gilt lettering to the spine) with Dj(two small tears on the edges of the front Dj cover,a couple of creases and nicks on the Dj cover),both in VGC.Illustrated with b/w drawings,diagrams.Nice and clean pages but with small foxing marks on the outer edges,small tear and mark on the edge of the 2nd page of the book,light shelf wear inside the edges of the Dj cover(small foxing marks on the edges of the Dj cover).158pp.A collectable first edition.