It's not really the referencing in itself, is it. It's the conclusions he draws from the information. For example, he quote NEwham about the importance of the sun and the moon in timing important annual events in settled agricultural communities. Which is a fair logical thing to think. You can make such a claim from looking at contemporary cultures and records in archives. But immediately after this DAmes says "At Silbury, solar and lunar calenars were brought together within the body of the supreme Mother." It's a non sequitur. You can't extrapolate like that, just because you want to believe it. I might as well say 'At the town car park, solar and lunar calendars..'. There's as little evidence offered.