| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 2 CD Set for Schmidt/Counsell Schmidt's Basics of Singing, 6th | 978-0-495-11532-8 (0-495-11532-0) | 2007 | Jan Schmidt |
| Basics of Singing | 978-0-495-11531-1 (0-495-11531-2) | 2007 | " |
C.S. · C. Schmidt · H. C. · H.S. · H. Schmidt · Heidi Schmidt