| IfThen | |
| 1 (Type/Class) | Text.CSL.Style |
| 2 (Data Constructor) | Text.CSL.Style |
| illustrator | Text.CSL.Reference, Text.CSL |
| Include | Text.CSL.Proc, Text.CSL |
| initInline | Text.CSL.Output.Pandoc, Text.CSL |
| Interview | Text.CSL.Reference |
| interviewer | Text.CSL.Reference, Text.CSL |
| isbn | Text.CSL.Reference, Text.CSL |
| isEtAl | Text.CSL.Eval.Names |
| Isi | Text.CSL.Input.Bibutils, Text.CSL |
| isLocator | Text.CSL.Style |
| isName | Text.CSL.Style |
| isNames | Text.CSL.Style |
| isNumeric | Text.CSL.Style |
| isNumStyle | Text.CSL.Proc.Collapse |
| isOptionSet | Text.CSL.Eval.Common, Text.CSL.Eval |
| isPlural | Text.CSL.Style |
| isPosition | Text.CSL.Style |
| isPunctuationInQuote | Text.CSL.Output.Pandoc |
| isRefDate | Text.CSL.Input.Json |
| isSet | Text.CSL.Style |
| issn | Text.CSL.Reference, Text.CSL |
| isSorting | Text.CSL.Eval.Common, Text.CSL.Eval |
| Issue | Text.CSL.Input.MODS |
| issue | Text.CSL.Reference, Text.CSL |
| issued | Text.CSL.Reference, Text.CSL |
| isTitleShortVar | Text.CSL.Eval.Common, Text.CSL.Eval |
| isTitleVar | Text.CSL.Eval.Common, Text.CSL.Eval |
| isType | Text.CSL.Style |
| isUncertainDate | Text.CSL.Style |
| isValueSet | Text.CSL.Reference |
| isVarSet | Text.CSL.Eval.Common, Text.CSL.Eval |