Directory of special libraries and information centers.
| Format | Book |
| Publication Info | Detroit, Mich. : Gale Research Co., ©1963- |
| Description | volumes ; 29 cm |
| Subjects |
| Frequency | Irregular |
| General note | Each volume separately titled: v. 1, Directory of special libraries and information centers in the United States and Canada, 2nd-7th ed.; Descriptive listings, 8th ed- ; v. 2, Geographic and personnel indexes, 2nd- |
| Special numbering | Second ed.- issued in 3 vols. |
| Supplement note | Volume 1 of each ed. kept up to date by periodic supplement: designated as v. 3, with title: New special libraries. |
| Other title | New special libraries. |
| LCCN | 84640165 sn 82001430 |
| ISSN | 0731-633X |