collection-id-type Type of Collection Identifier

Type of identifier for a series or set of books, or for the organization or system that defined the identifier.
OPTIONAL on element: <collection-id>
Value Meaning
Text, numbers, or special characters The type of identifier (such as “lccn”) or type or name of the organization that created the identifier.
Restriction @collection-id-type is an optional attribute; there is no default.