Robert Griesbeck · Robert Grossbach · Robert Grossblatt · Robert Gürkov
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Ballet 101: A Complete Guide to Learning and Loving the Ballet | 978-0-87910-325-5 (0-87910-325-6) | 2005 |
| Ballet 101: A Complete Guide to Learning and Loving the Ballet | 978-0-7868-8155-0 (0-7868-8155-0) | 1998 |