alberti 's work includes `` vida bilingue de un exiliado espanol en francia '' -lrb- `` bilingual life of a spanish refugee in france '' -rrb- , `` la amante '' -lrb- `` the lover '' -rrb- and `` trece barras y 48 estrellas '' -lrb- `` thirteen bands and 48 stars '' -rrb- , the latter written in the 1930s to criticize american imperialism .