S. Robertson · Sara Roberts · Sarah Roberts · Sawyer Robert
Palgrave Macmillan · Sunflower Books
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Encyclopedia of Life Sciences | 978-1-56159-274-6 (1-56159-274-9) | 2001 | Gina Fullerlove |
| Landscapes of the Italian Lakes | 978-1-85691-359-1 (1-85691-359-7) | 2009 | David Robertson · Stewart Robertson |