Bender, H. S. "Mennonite Publishing Company". Global Anabaptist Mennonite Encyclopedia Online. Herald Press. Retrieved 7 March 2012.
Steiner, Sam. "Kolb, Abram B. (1862-1925)". Global Anabaptist Mennonite Encyclopedia Online. Herald Press. Archived from the original on 28 September 2011. Retrieved 11 January 2012.
Steiner, Sam. "Kolb, Abram B. (1862-1925)". Global Anabaptist Mennonite Encyclopedia Online. Herald Press. Archived from the original on 28 September 2011. Retrieved 11 January 2012.