A & C Black Publishers Ltd · Fourth Estate Ltd · HarperCollins · Pica / Christopher Helm · Quercus Publishing Plc · Yale University Press
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| How Many Lightbulbs Does it Take to Change a Planet?: 95 Ways to Save Planet Earth | Mass Market Paperback | 978-1-84724-371-3 | 2008 | |
| How Many Lightbulbs Does It Take to Change a Planet?: 95 Ways to Save Planet Earth | Paperback | 978-1-84724-049-1 | 2007 | |
| Parrots: A Guide to Parrots of the World | Hardcover | 978-0-7136-6933-6 | 2003 | Mike Parr |
| Parrots: A Guide to Parrots of the World | " | 978-0-300-07453-6 | 1998 | " |
| Parrots: A Guide to the Parrots of the World | " | 978-1-873403-40-2 | 1998 | " |
| Saving Planet Earth: What is Destroying the Earth and What You Can Do to Help | " | 978-0-00-726183-3 | 2007 | |
| Spix's Macaw: The Race to Save the World's Rarest Bird | Paperback | 978-0-7434-7551-8 | 2004 | |
| Spix's Macaw: The Race to Save the World's Rarest Bird | Hardcover | 978-0-7434-7550-1 | 2003 | |
| Spix's Macaw: The Race to Save the World's Rarest Bird | " | 978-1-84115-651-4 | 2003 | |