9780792271048 | Natl Geographic Soc Childrens books, March 1, 2000, cover price $15.95 |
About this edition: Describes the formation of sand from materials such as coral, rock, or crystals and shows how it can be moved through water, wind, ice, and other erosion agents.
9780792255833 | Reprint edition (Natl Geographic Soc Childrens books, April 25, 2006), cover price $6.95 |
About this edition: Describes the formation of sand from materials such as coral, rock, or crystals and shows how it can be moved through water, wind, ice, and other erosion agents.