Swidler, L. J., & Küng, H. (1966). The ecumenical vanguard: The history of the Una Sancta movement. Duquesne University.
Chicago Style (17th ed.) CitationSwidler, Leonard J., and Hans Küng. The Ecumenical Vanguard: The History of the Una Sancta Movement. Pittsburgh: Duquesne University, 1966.
MLA (9th ed.) CitationSwidler, Leonard J., and Hans Küng. The Ecumenical Vanguard: The History of the Una Sancta Movement. Duquesne University, 1966.
Warning: These citations may not always be 100% accurate.