resource-type Resource Type

Names the type or kind of resource, where a resource is defined as some specific support for the work described in book or book-part, for example, “research-materials”.
OPTIONAL on element: <contributed-resource-group>
Value Meaning
Text, numbers, or special characters Type of resource (specific support for the work described), for example, “research-materials”.
Restriction @resource-type is an optional attribute; there is no default.