VGC.J M Dent and Sons,1975.First UK edition-first impression.Large format red hardback(gilt lettering to the spine,small nick and light shelf wear on the edges of the cover) with protected Dj(small nicks and scratches on the protected cover),both in VGC.Illustrated with b/w diagrams,drawings,tables.Ex-Library book with stamps,sticker,writing but in VGC.Nice and clean pages with a couple ink marks,small mark and light shelf wear on the outer edges,small crease and ink mark on the edges of the pages,pencil mark impression on the edge of the first page of the book,small colour mark inside the title page.The book is in VGC with light shelf wear.221pp including Author's foreword,appendices I to III,bibliography,index.Price un-clipped.A collectable first edition.Heavy book.