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Laboratory evaluations of stabilized flue gas desulfurization sludge (scrubber sludge) and aggregate mixtures / by Mark Anderson, Gary W. Sharpe, David L. Allen, Herbert F. Southgate and Robert C. Deen. (OCLC #884361903)

When I first started cataloging ebooks, the standard was to catalog them as electronic reproductions of print, and with a separate record for each platform that provided the title. This made some sense, but was frustrating for copy cataloging when you’d see only a skimpy record for the copy you had access to, but a robust popular record for the copy from another vendor.

In 2009, the preferred standard changed to provider-neutral records; that is, all copies of a particular ebook should now be cataloged on a single record with 856 fields for each link that provides access to it. Fields in this record describe an electronic resource (rather than mainly describing print, with reproduction notes in a 533) and do not include details that only apply to specific platforms, such as added entries for the distributor or 506 notes describing restrictions on access. Such details can be added to local catalogs if they are helpful to patrons.

Since a single provider-neutral record can be used for manifestations with various carriers (PDF, HTML, plain text) but not all carriers (excludes print, microform), the level of cataloging is somewhere between expression and manifestation.

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