“那些书是谁的”该怎么翻译成英语?

问题描述:

“那些书是谁的”该怎么翻译成英语?
这本书是谁的whose book is it?
那本书是谁的whose book is that?
那些书是谁的 还不是该翻译成 whose books are those?
感觉很别扭啊...正确的该怎么翻?

可以有两种翻译:
Whose are those books?
Whose books are those?