This document discusses different types of reference in language. It defines reference as the relationship between words and the people, objects, or ideas they refer to. There are several types of reference:
Exophoric reference refers to things outside the text, while endophoric reference refers to other parts of the text. Endophoric reference can be further broken down into anaphoric reference, which refers back to something already mentioned, and cataphoric reference, which refers forward. The document also discusses substitution and ellipsis as other cohesive devices in language.