2.0B. Sources of information
2.0B1. Chief source of information
The last sentence of rule 2.0B1 allows the cataloger to treat as a single chief source successive leaves or pages. The intent of this provision is not to combine separate title pages, however. Separate title pages usually repeat everything. The intent is for a spread of single title page data. It is true that in such a spread some elements may be repeated (as the provision recognizes). A tip-off that this provision is applicable is either no repetition or a partial repetition. Conversely, complete repetition is a tip-off of non-applicability.
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