Hold / 135 Coded data field: Electronic resources
135 Coded data field: Electronic resources
Field Definition
This field contains coded data relating to electronic resources and may be used both in UNIMARC bibliographic record or in UNIMARC holdings record, according to the usage of the bibliographic agency.
If the document exists only as an electronic resource, field 135 of UNIMARC bibliographic format must be used.
The use of this field in the UNIMARC holdings format is according to the usage of the same field in the UNIMARC bibliographic format.