Quote Originally Posted by kalinka_vinnie
So the question is on some elementry grammar

What is the best translation of:
Who's book is this?
1) Чья книга?
2) Чья это книга?
3) Чья эта книга?
4) Чего ты на меня паришь, мужик!

Not sure about the last one though...

So what would the others translate to?

Thanks!

Vinnie & Saibot
The first three are all correct, with some slight differences. Well, the second and the third sentences seem equal, JJ already said that, and the first one sounds like an order to answer, something a drill sergeant would ask.