  2020 - Time Travel Probability and Impossibility (Hardcover) ISBN-13: 9780198842507 ISBN-10: 0198842503 Genres: Science & Math, Politics & Social Sciences ?  2013 - An Introduction to Ontology (Paperback) ISBN-13: 9780745652559 ISBN-10: 0745652557 Genre: Politics & Social Sciences ?  2011 - Metaphysics the Key Concepts [Routledge Key Guides] (Paperback) → Hardcover ISBN-13: 9780415559287 ISBN-10: 0415559286 Genre: Nonfiction ?  2011 - Metaphysics the Key Concepts [Routledge Key Guides] (Hardcover) → Paperback ISBN-13: 9780415559270 ISBN-10: 0415559278 Genre: Nonfiction ? |
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