| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1988 | 978-0-943488-04-2 | Shirley Reiff (ed.) Howarth | ARTnews International Directory of Corporate Art Collections |
| 1993 | 978-0-943488-05-9 | Shirley Reiff Howarth | Art News International Directory of Corporate Art Collections 96-97 |