[T.B. Yoits]

The guy who literally wrote the book on fascism said bluntly that it was socialism.

Exactly. It's the Nazi party - National Socialist Workingmen's Party.

[Harmless Teddy Bear]

I was thinking of "The Doctrine of Fascism" by Mussolini.

Some was asked what was the difference between Socialism and Fascism and they answered dryly that fascists were socialists that still understood the principles of agriculture.