Answer:
Some common ways to incorporate secondary sources in an essay are: 1) using a theory as a lens to examine your topic or primary source, 2) drawing from scholarly articles to give critical insights and to support your arguments, and 3) defining a minor term using the OED.
Explanation:
Scholars writing about historical events, people, objects, or ideas produce secondary sources because they help explain new or different positions and ideas about primary sources. These secondary sources generally scholarly books, including textbooks, articles, encyclopedias, and anthologies.