Dr John Meffen · J.M. · John M.
| title | ISBN-13 | year of publication |
|---|---|---|
| Guide to Tuning Musical Instruments | 978-0-7153-8169-4 | 1982 |
| Improve Your Piano Playing | 978-0-7160-2207-7 | 2008 |
| Improve Your Piano Playing | 978-1-58115-476-4 | 2007 |
| Improve Your Piano Playing | 978-0-7160-3001-0 | 2001 |
| Mejore su técnica de piano | 978-84-15256-83-0 | 2015 |
Allworth · David & Charles · Right Way