Dizionario Polacco - Inglese

w czerni i bieli in inglese:

This agreement is invalid, unless you bring it in black and white.

For safety sake, any agreement should be signed in black and white.

I put down my complaint in black and white.

How could you not understand? Look at this letter - it's all there in black and white

I want to see the contract in black and white.

There it was, in black and white; he had passed!

I had to believe it, because it was there in black and white.

The details are all in this contract. Everything is there in black and white.

It’s your duty. It’s written in black and white in your contract.