Reprint in a single volume of the book Perché la Chiesa (Jaca Book, Tomo 1. La pretesa permane, 1990, pp. 7-121; Tomo 2. Il segno efficace del divino nella storia. Volume terzo del perCorso, 1992, pp. 123-247): when the edition was sold out, it was republished to allow the immediate use of the text in courses in higher educational institutions and universities, where it was adopted in 2001.

Nel 2003 the volume received its definitive format in the Rizzoli edition of PerCorso (1997-2003).