Endangered species
4 books
Siberia
2005
ISBN 9780385908856
Manatee Blues
2000
ISBN 9781436437592
Wolves
1991
ISBN 9780750201476- No cover
The 10 Most Endangered Animals
2009
ISBN 9781442513181
4 books
Siberia
2005
ISBN 9780385908856Manatee Blues
2000
ISBN 9781436437592Wolves
1991
ISBN 9780750201476The 10 Most Endangered Animals
2009
ISBN 9781442513181