G. C. · G. Clark · Gail I. Clark Ph.D. · I.C.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Puppy Parenting | 978-1-57779-012-9 (1-57779-012-X) | 1999 |
| The Mentally Sound Dog: How to Shape, Train and Change Canine Behavior | 978-0-931866-67-8 (0-931866-67-7) | 1995 |