which book
Which book should I read?
Jiro mi consigliò quale libro comprare.
Jiro advised me which book to buy.
Which book do you want?
Quale libro consideri il migliore?
Which book do you consider the best?
Which book do you need?
Quale libro è più vecchio, questo o quello?
Which book is older, this or that?
«In quale libro si trova?» chiesi.
“Which book is it in?” I asked.
Which book do you see?
I don’t know which book to choose.