[1]
U. B. Leu, „John Landis Ruth, The Earth Is the Lord’s, A Narrative History of the Lancaster Mennonite Conference, Scottdale PA/Waterloo Ont. 2001 (Studies in Anabaptist and Mennonite History, No. 39)“, Zwa, Bd. 32, Nr. , S. 166–167, Jan. 2010.