If you want to know more about the history of Pergamon Press there's a great Behind the Bastards episode on Robert Maxwell (Ghislaine Maxwell's father) - who himself was a scumbag in a variety of ways that were entirely distinct from Ghislaine Maxwell's brand of scumbaggery - that covers this. Might even be a multipart episode - it's a while since I've listened to it, but I have a feeling it's at least a two parter.