1974 - Thesevenpercent Solution Being a Reprint From the Reminiscences of John H Watson Md (Hardcover) ISBN: 446984 Genre: Mystery, Thriller & Suspense 1 1974 - The Sevenpercent Solution Being a Reprint From the Reminiscences of John H Watson Md (Hardcover) → Paperback, Hardcover ISBN: 447074 Genre: Mystery, Thriller & Suspense 1 |