È questo un esempio di brutalismo, bauhaus o architettura art deco?

I think its socialisist attempt to resemble all. In that, its none.

I think this one sates before brutalism and whole communism architecture, It was built in the 30’.

It is mix of multiple influences, and styles as each section of the building is a bit different.

Modernisms,

https://beogradskonasledje.rs/arhiva-2/zgrada-drzavne-stamparije