| 513120 |
Television guide publishers (except exclusive Internet publishing) |
| 513120 |
Television guide publishers and printing combined |
| 513120 |
Television guide publishers, exclusively on Internet |
| 513120 |
Trade journal publishers |
| 513120 |
Trade journal publishers (except exclusive Internet publishing) |
| 513120 |
Trade journal publishers and printing combined |
| 513120 |
Trade journal publishers, exclusively on Internet |
| 513120 |
Trade magazine and periodical publishers |
| 513120 |
Trade magazine and periodical publishers (except exclusive Internet publishing) |
| 513120 |
Trade magazine and periodical publishers and printing combined |