S.C. · S. Collins · Stanley H. Collins
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| An Alphabet of Animal Signs | 978-1-930820-08-1 (1-930820-08-9) | 2001 |
| First Signs | 978-1-930820-11-1 (1-930820-11-9) | 2001 |
| Signs for Pets and Animals | 978-1-930820-10-4 (1-930820-10-0) | 2002 |