Discusses how the authors became paleontologists and describes their expeditions to the Gobi Desert in Mongolia and the important fossils they found there.
- ISBN10 0385325584
- ISBN13 9780385325585
- Publish Date 12 October 1999
- Publish Status Remaindered
- Publish Country US
- Imprint Doubleday Books for Young Readers
- Format Hardcover
- Pages 48
- Language English