| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Rhythms of Learning: What Waldorf Education Offers Children, Parents & Teachers | 978-O-88O1O-451-7 (O-88O1O-451-1) | 1998 | Rudolf Steiner |
R. T. · Robert Thurston · Robert Trachtenberg · Robert Traister · Robert Troschitz · Roberto Torresetti · Roberto Trejada