| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| New Directions for Strings Cello Book 1 | 978-1-56939-574-5 | 2008 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Cello Book 2 | 978-1-56939-708-4 | 2009 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Double Bass Book 1 | 978-1-56939-576-9 | 2008 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Double Bass Book 1 | 978-1-56939-577-6 | 2008 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Double Bass Book 2 | 978-1-56939-709-1 | 2009 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Teacher's Manual Book 1 | 978-1-56939-575-2 | 2008 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Viola Book 1 | 978-1-56939-573-8 | 2008 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Violin Book 1 | 978-1-56939-572-1 | 2008 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |
| New Directions for Strings Violin Book 2 | 978-1-56939-706-0 | 2009 | Joanne Erwin · Kathleen Horvath · Robert D. McCashin |