Rancom vaguely related topic question - What is the right thing to do about some obvious copyvios which I haven't figured out where the copying was from yet? [[Ship construction]] has a bunch of images which claim to have been done as original Autocad work for Wikipedia, and yet are clearly scans out of ship design textbooks, some of which I recognize, but I haven't figured out which books yet. The same person contributed them all, and some other suspicious stuff.
Thanks.