Cite
On Systems of Rhetoric.
MLA
Ehninger, Douglas. “On Systems of Rhetoric.” Philosophy & Rhetoric, vol. 25, Jan. 1992, pp. 15–28. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edb&AN=16241283&authtype=sso&custid=ns315887.
APA
Ehninger, D. (1992). On Systems of Rhetoric. Philosophy & Rhetoric, 25, 15–28.
Chicago
Ehninger, Douglas. 1992. “On Systems of Rhetoric.” Philosophy & Rhetoric 25 (January): 15–28. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edb&AN=16241283&authtype=sso&custid=ns315887.