You want a source for Fromm? How about the Wikipedia page? I just went to Google to see if I there was any free material from Fromm, saw the Wikipedia link, and it actually discusses his points on his contrasts between medieval society and capitalist society. I’m not sure your authority on Fromm, but the citations on his Wikipedia page look fairly strong. Why not check them out?

To your point on notes, I take quite a few of them. Of course, when it comes to exchanges that take place in written form on a digital media, they appear to be fairly well kept right here.

Cheers.