@book{
title = {Experiencias internacional 2 },
author = {},
editor = {Alonso, Encina},
editor = {Alonso, Geni},
editor = {Calle Fernández, Ana},
editor = {Ortiz, Susana},
editor = {Sáez Garcerán Patricia},
editor = {Il compl. del tit. precede il tit },
year = {2019},
address = {Madrid },
publisher = {Edelsa},
}