Letts Pocket Guide to Rocks and Minerals [Letts pocket guides] (Hardcover) ISBN-13: 9781852381172 ISBN-10: 1852381175 ? Rocks and Minerals [Identification Guide] (Paperback) ISBN-13: 9781844519217 ISBN-10: 184451921X Genre: Science & Math ? Rocks Minerals [Pocket Reference Guides] (Hardcover) ISBN-13: 9781860197703 ISBN-10: 1860197701 Genres: Travel, Nonfiction, Science & Math, Outdoors & Nature ? |