| Code | Display | Definition |
| chapters | chapters | Denotes specific chapter or chapters of an article or artifact. |
| pages | pages | Denotes specific page or pages of an article or artifact. |
| sections | sections | Denotes specific section or sections of an article or artifact. |
| paragraphs | paragraphs | Denotes specific paragraph or paragraphs of an article or artifact. |
| lines | lines | Denotes specific line or lines of an article or artifact. |
| tables | tables | Denotes specific table or tables of an article or artifact. |
| figures | figures | Denotes specific figure or figures of an article or artifact. |
| supplement | Supplement or Appendix | Used to denote a supplementary file, appendix, or additional part that is not a subpart of the primary article. |
| supplement-subpart | Supplement or Appendix Subpart | Used to denote a subpart within a supplementary file or appendix. |
| article-set | Part of an article set | Used to distinguish an individual article within an article set where the article set is a base citation. |