%book-part-locations;
Book Part Locations
This parameter entity provides the values for the @from-where attribute. When a <book-part> is exchanged, the @from-where
attribute can be used to record the origin of the <book-part>, such as, inside
the narrative <front-matter>, in the <body>, as part of the rear matter (<back>), or in supplementary material.
Model
<!ENTITY % book-part-locations
"front-matter | body | back | supplemental" >