Should you cite the volume and issue numbers?

It depends on the style guide or referencing system you are using. Some style guides, such as APA style, require you to include the volume and issue numbers when citing a journal article. Other style guides, such as MLA style, do not require you to include the issue number, but do require the volume number. Ultimately, the decision of whether or not to include the volume and issue numbers will depend on the specific style guide or referencing system you are using.