There are resources for Justin Martyr which have milestones for the first apology but not Edgar, William, and K. Scott Oliphint, eds. Christian Apologetics Past and Present: A Primary Source Reader, to 1500. Vol. 1. Wheaton, IL: Crossway, 2009. why? It feels like the app goes out of its way to hide resources of less than a full book length. (Yes, I am frustrated trying to find 1st and 2nd century authors not in my Logos library.
