BLANCO, P. Ryan J. MARR, To be perfect is to have changed often: the development of John Henry Newman’s ecclesiological outlook, 1845-1877, Lanham, Boulder, New York, London: Lexington Books/Fortress Academic, 2018, 195 pp., 13 x 22, ISBN 978-1-978700-57-4. Scripta Theologica, v. 53, n. 1, p. 255, 31 mar. 2021.