Describes the qualities to consider in selecting the perfect rock for play and pleasure.
- ISBN10 0606033335
- ISBN13 9780606033336
- Publish Date 1 September 1985 (first published 1 August 1974)
- Publish Status Out of Print
- Out of Print 3 March 2021
- Publish Country US
- Imprint Demco Media Inc
- Edition Turtleback School & Library ed.
- Format Hardcover
- Pages 32
- Language English