| 513140 |
Business directory publishers and printing combined |
| 513140 |
Business directory publishers, exclusively on Internet |
| 513140 |
Catalog of collections publishers |
| 513140 |
Catalog of collections publishers (except exclusive Internet publishing) |
| 513140 |
Catalog of collections publishers and printing combined |
| 513140 |
Catalog of collections publishers, exclusively on Internet |
| 513140 |
Directory and mailing list publishers |
| 513140 |
Directory and mailing list publishers (except exclusive Internet publishing) |
| 513140 |
Directory and mailing list publishers and printing combined |
| 513140 |
Directory publishers |