Incoming Resources
- Puffin Books, s.l., 1977
- Puffin Books, London, 2015, c1993
- Puffin Books, New York, NY, c2000
- Puffin Books, New York, 2000
- Puffin Books, New York, 2003
- Puffin Books, New York, 2005
- Puffin Books, New York, N.Y., 2004, c1970
- Puffin Books, New York, 2001
- Puffin Books, New York, N.Y., U.S.A., 1987, c1957