In which citation style(s) are page numbers NOT required when citing paraphrases?

The American Psychological Association (APA) citation style does not require page numbers for paraphrased material. However, it is recommended to include them when it would help the reader locate the relevant passage within a long work.

The Modern Language Association (MLA) citation style also does not require page numbers for paraphrased material, but it is recommended to include them if available.

In contrast, the Chicago Manual of Style (CMS) does require page numbers for paraphrased material.

So, in summary, APA and MLA do not require page numbers for paraphrases, but it is good practice to include them if it helps the reader. CMS does require page numbers.