If this is for a High school essay ask your teacher if wikipedia is allowed. And if it is a College essay forget about even using it, unless your professor granted you permission.
And yes it would be an encyclopedia cite.
ONLINE PUBLICATION SOURCES
67. Online publication:
a. By a known author
Authorship is sometimes hard to discern for online sources. If you know the
author or creator, follow the rules for periodicals and books.
Kaplan, Nancy. “E-literacies: Politexts, Hypertexts, and
Other Cultural Formations in the Late Age of Print.”
Working paper, 24 Jan. 1995. 2 July 1999
<>.http://raven.ubalt.edu/staff/kaplan/lit/>. ( <==ignore this link)
I had thought about making a mock citing of this website address but I am to lazy.