| Company | HITCHCOCK PUBLISHING COMPANY |
|---|---|
| Business Number | 83657 |
| Business Address | NONE |
| Company | HARCOURT PROFESSIONAL EDUCATION GROUP, INC. |
|---|---|
| Business Number | 186771 |
| Business Address | NONE |
| Company | CHILTON MEDIA, INC. |
|---|---|
| Business Number | 208401 |
| Business Address | NONE |
| Company | MDL INFORMATION SYSTEMS, INC. |
|---|---|
| Business Number | 517183 |
| Business Address | NONE |