2006 - More Invention Mysteries 52 Littleknown Stories Behind Wellknown Inventions (Paperback) ISBN-13: 9780974804118 ISBN-10: 0974804118 Genres: Reference, Science & Math, Engineering & Transportation ? 2004 - Invention Mysteries (Paperback) ISBN-13: 9780974804101 ISBN-10: 097480410X Genre: Children's Books ? Devils Tower First National Monument a Pictorial History (Paperback) ISBN-13: 9780966959369 ISBN-10: 0966959361 ? |