Cross-references

Capture a reference to an item within the same article or book part (chapter) using an xref element with a rid attribute whose value is the value of the id attribute of the target item. Within a book, capture a reference from one book part to another using a related-object element.

Give the xref element a ref-type attribute whose value corresponds to the type of the target.

Target of xref	Value of ref-type
fn	fn
fn (inside table-wrap-foot)	table-fn
fn (inside author-notes)	author-notes
ref	bibr
aff	aff
corresp	corresp
app	app
boxed-text	boxed-text
disp-formula	disp-formula
fig	fig
table	table
table-wrap	table
sec	sec
supplementary-material	supplementary-material
term	glossary-term
Any other element.	other

For targets outside the book part, capture the following attributes on the related-object element.

Attribute name	Value
document-type	book
document-id-type	isbn13
document-id	Print ISBN of the book that is the target, or contains the target.
object-type	The type of the target. Allowed values are: app audio bibr boxed-text chapter collection-article disp-formula end-note fig glossary-term other part reference-article sec supplementary-data table target video
object-id-type	publisher-id
object-id	Value of publisher-id of target element. If target element does not have a publisher-id, use the value of the id attribute of target element.

The attributes object-type, object-id-type, and object-id are only used when the target is not a book.

If the text of the cross-reference is to be typographically styled (e.g. italic, superscript), capture the typographic markup (e.g. italic, sup) within the xref or related-object element.

Cross-reference to a figure

See figure <xref ref-type="fig" rid="f4">4(g)</xref>.

Reference figures individually, so the rid only contains one value.

See figures <xref ref-type="fig" rid="F5">5</xref>
                –<xref ref-type="fig" rid="F6">6</xref>.

Cross-reference to supplementary material

 
<xref ref-type="supplementary-material" rid="sup1">Table 3</xref>

Cross-reference to an end note in a book

This example shows a cross-reference to an item in a different part of a book.

<related-object document-type="book" 
  document-id-type="isbn13" 
  document-id="9780198749783"
  object-type="end-note" 
  object-id-type="publisher-id" 
  object-id="workid-UKRAI10JL5MB-book-part-19-fn-1">
  <sup>1</sup>
</related-object>

Cross-reference to a paragraph identifier from an index

The target is a target target-type="para-id" element.

Use a object-type="other" attribute for this cross-reference.

<index-entry id="isbn-9780198813668-index-entry-22">
  <term>stakeholders</term>
  <nav-pointer-group>
    <nav-pointer>
      <related-object 
        document-type="book" 
        document-id-type="isbn13" 
        document-id="9780198813668" 
        object-type="other" 
        object-id-type="publisher-id" 
        object-id="isbn-9780198813668-book-part-10-target-942">10.76</related-object>
    </nav-pointer>
  </nav-pointer-group>
</index-entry>

Cross-reference to a figure

Cross-reference to supplementary material

Cross-reference to an end note in a book

Cross-reference to a paragraph identifier from an index

Sub-topics