...
Record sources
1) Demand driven acquisitions: OCLC records through WorldCat Cataloging Partners, ordered by EBL. The records are also available directly through EBL, but OCLC is the preferred source.
Title-by-title purchasing only: EBL records, OCLC records or YBP records (if you plan to go through them).
PREFERRED 2) Demand driven acquisitions: EBL records if you use a EBL profile; YBP records if you profile through them. We can also facilitate ordering OCLC records if you absolutely need those records. Ordering OCLC records is a manual process on our part so it's a case-by-case basis at this pointwe opt for them).
You can view some sample EBL records at http://ebl.wufoo.com/forms/sample-free-ebl-marc-records/.
...