| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Six Creepy Sheep | 978-0-606-20918-2 | 2002 | Judith Ross Enderle |
| Six Snowy Sheep | 978-0-14-055704-6 | 1995 | " |
| The Winning Heart | 978-0-525-66812-1 | 1983 | |
| Where Are You, Little Zack? | 978-0-395-73092-8 | 1997 | Judith Ross Enderle · Stephanie Jacob Gordon |
G. T. · Gordon-T · Gordon Tessler · S. G. · S. Gordon · S. T. · Stephanie Tessler
Demco Media · Dutton · Houghton Mifflin · Penguin