List the title of the article or entry in quotation marks, followed by a period. For example:
"Lake Erie."
List the title of the reference work in italics, followed by a period.
List the edition in the following format:
6th ed.
List the year of publication, followed by a period.
List the medium of publication, followed by a period. This should appear as follows:
Print.
The finished citation should appear in the following format (with the title of the reference work italicized).
"Lake Erie." The Encyclopedia of North America. 6th ed. 2010. Print.