What bookdealers really mean. A dictionary by Tom Congalton and Dan Gregory (Between the Covers), with additions from other sources
National Union Catalogue, a huge compilation that records the known copies of books in libraries, published in several hundred very large volumes, with much information about the books. However, if you want to take it around to bookstores with you, you’ll either need a microfiche reader, or a large bookmobile.
Immense catalogue qui rassemble tous les exemplaires connus dans les bibliothèques américaines.