Nüssel, F. (2004). Ökumene. Lexikon Theologie, 216-220.
Chicago Style (17th ed.) CitationNüssel, Friederike. "Ökumene." Lexikon Theologie 2004: 216-220.
MLA (8th ed.) CitationNüssel, Friederike. "Ökumene." Lexikon Theologie, 2004, pp. 216-220.
Warning: These citations may not always be 100% accurate.