2010 - Symmes's Theory of Concentric Spheres Demonstrating That the Earth Is Hollow Habitable Within and Widely Open Abut the Poles [1826] (Hardcover) → Paperback ISBN-13: 9781120982131 ISBN-10: 1120982138 Genre: Literature & Fiction ? 2010 - Symmes's Theory of Concentric Spheres Demonstrating That the Earth Is Hollow Habitable Within and Widely Open Abut the Poles [1826] (Paperback) → Hardcover ISBN-13: 9781120867711 ISBN-10: 1120867711 Genre: Literature & Fiction ? 2009 - Symzonia (Paperback) ISBN-13: 9780217998758 ISBN-10: 0217998755 Genres: Literature & Fiction, Science Fiction & Fantasy ? 1975 - Symzonia Voyage of Discovery [Puerto Rican Experience] (Hardcover) ISBN-13: 9780405063121 ISBN-10: 0405063121 ? |