When should you use footnotes?
For example, MLA footnotes can be used to direct the reader to further relevant sources or add information that could be useful but is not critical to your text. If you wish to include footnotes or endnotes because you want to provide supplementary information, you should consider: The number of notes.
How do I put multiple sources in one footnote?
To cite multiple sources of the same kind in the same footnote, put the sources in chronological order with the oldest first, separating them with a semi-colon. For example: Broder v Saillard (1876) 2 Ch D 692 (Ch); Pemberton v Bright  1 All ER 792 (CA).
What if you use two sources in one sentence?
For multiple citations in one sentence MLA, you will need to mention the name of the first author and then the “et al” phrase (that means others) excluding quotation marks. For instance, “In a discussion by Dee and his colleagues….”or you can include in-text citations in the end as (Dee et al. 43).
What to do if two in text citations are the same Harvard?
If you wish to refer to more than one source which has the same viewpoint, list them together at the relevant point in the sentence, putting them in brackets with the author’s name, followed by the date of publication and separated by a semi-colon. The sources should be cited in alphabetical order in each list.