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Supplementary material includes pieces that are not indexes and that are issued in addition to the parent resource. For indexes, see the next set of examples. Sometimes these pieces of supplementary material are clearly identified as such supplements or as material supplementing the basic bibliographic unit. In other instances, the pieces are described in the bibliographic record as accompanying material, e.g., maps in pocket, an answer book accompanying a textbook, or a pamphlet accompanying an audio disc. Frequently Occasionally supplementary material will be in a different medium have a different carrier type from the parent resource.
In most cases, distinctive titles of numbered supplements do not need to be recorded.
Example 56: Describing supplementary material with its own numbering
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