@book{
title = {Elementary language practice },
author = {Vince, Michael},
editor = {Tennant, Adrian},
editor = {2. compl. del tit. dalla cop },
editor = {Responsabilità sull'alleg.: Adrian Tennant },
year = {2010},
edition = {3rd ed},
address = {Oxford },
publisher = {Macmillan Heinemann},
}