Deletion of Magnum Crimen

Comment: Earlier I was on the fence, but I'm convinced now that this article should be kept as being about a book which has had a significant impact, based on how often it has been cited. If specific reference to guidelines is needed then check out #Academic books: "notability should rely on...how widely the book is cited by other academic publications or in the media
Stance: keep
Cited policy: Wikipedia:Notability (WP:BK)