| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 50 Lessons for High Voice, Op. 9 | 978-0-7935-5356-3 (0-7935-5356-3) | 1986 | |
| 50 Lessons, Op. 9: Medium Voice | 978-0-7935-5344-0 (0-7935-5344-X) | 1986 | |
| Concone - School of Sight-Singing: Vocal | 978-0-7935-5102-6 (0-7935-5102-1) | 1986 | B Lutgen |