Keifert, P.R. (2022) “Olsen, Steen, Jacob’s Ladder: Missional Church in the 1970s: St. Marys, Australia: SA & RL Olsen, 2020. ISBN-13: 978-06-4899-680-4”, Ecclesial Futures, 3(1), pp. 125–127. doi:10.54195/ef12159.