When an endnote refers to a source that provides more information on a topic, should I also include the source in the works-cited-list?
Yes, you should provide a works-cited-list entry if you refer the reader to a source for more information on a topic. Do not provide the full publication details in the endnote. Instead, key the endnote to the list of works cited, as you would in the body of your paper.
If you merely mention the source in passing, however, you may not need an entry. Read more about passing references.
Published 25 January 2018