Describes, in text and photographs, the duties and day-to-day activities of John Cronin who works as the riverkeeper of the Hudson River.
- ISBN10 0027009114
- ISBN13 9780027009118
- Publish Date 31 March 1990
- Publish Status Unknown
- Publish Country GB
- Publisher Prentice Hall (a Pearson Education company)
- Imprint Prentice Hall & IBD
- Format Hardcover
- Pages 48
- Language English