| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| EKG in a Heartbeat | Spiral-bound | 978-0-13-249932-3 (0-13-249932-0) | 2011 |
| EKG in a Heartbeat | Plastic Comb | 978-0-13-061440-7 (0-13-061440-8) | 2001 |
| EKG Plain and Simple | Paperback | 978-0-13-237729-4 (0-13-237729-2) | 2011 |
E R · K. Ellis · K. R. · Karen E. · Karen Ellis