[neutronicus]

It is not a textbook, it is an extremely dense reference manual, so that honestly makes sense.

In physics grad school, professors would occasionally allude to it, and textbooks would cite it ... pretty often. So it's a thing anyone with postgraduate physics education should know exists, but you wouldn't ever be assigned it.

[rendaw]

Presumably someone read it though, at some point, in order to be able to cite it.

[neutronicus]

The relevant sections, at any rate