...
Printed items often contain manuscript markings. Routinely, these are noted in the 561 of the holdings record and, if applicable, the name of the annotator traced in the bibliographic record in an added entry with the appropriate relationship designator (though more than one relationship designator may be used, a single, comprehensive term like "former owner" is preferred). (See RDA Appendix I, the RBMS list of relationship designators, and MARC guidelines and terms for vocabulary and usage.) However, on occasion, an item will often be found to contain significant manuscript additions or insertions. Treat these as noted below.
...