A family crosses a river on a ferryboat and observes how the ferry operates.
- ISBN10 0690045204
- ISBN13 9780690045208
- Publish Date 1 October 1987 (first published 1 May 1986)
- Publish Status Out of Stock
- Publish Country US
- Imprint HarperCollins Publishers
- Format Hardcover (Library Binding)
- Pages 30
- Language English