Identifies the subject, information class, or type of a particular <subj-group> element
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | Type or purpose of subject group. The dtd allows this attribute to take any value. The list of values preferred by APA is presented below. |
| Restriction: This attribute may be specified if the element is used. | |
|
toc-heading |
The subject or topic heading that should appear in the print or online table of contents. |