:

which of the following makes a resource reference within an informational text?

summary
paraphrase
internal citation
works cited page

The one that makes a resource reference within an informational text is an internal citation.

Explanation:

An internal citation is presented within the text, it does not go in the works cited page, they both have similar purposes but they are located in different parts of the written material, writers use the internal citation to give credit to the material which is being used in the gathering information process and became fundamental in the result.