por Valdez, Elba Abril [autor] | Lostaunau Bautista, Margot [autor] | Cubillas Rodríguez, Ma. José [autor] | Román Pérez, Rosario [autor].
por Golombok, Susan [autor] | Piña Aldao, Cristina [traductor] | Golombok, Susan. Modern families : parents and children in new family forms.