A simple explanation of how a telephone works, how we speak and hear, and different kinds of phones.
- ISBN10 0897990447
- ISBN13 9780897990448
- Publish Date 1 January 1979
- Publish Status Out of Stock
- Out of Print 2 October 2008
- Publish Country US
- Imprint Dandelion Press
- Edition Illustrated edition
- Format Hardcover
- Pages 32
- Language English