Escobar Álvarez, M. A. (2011). English grammar and learning tasks for tourism studies. UNED - Universidad Nacional de Educación a Distancia.
Citazione stile Chigago Style (17a edizione)Escobar Álvarez, María Ángeles. English Grammar and Learning Tasks for Tourism Studies. Madrid: UNED - Universidad Nacional de Educación a Distancia, 2011.
Citatione MLA (9a ed.)Escobar Álvarez, María Ángeles. English Grammar and Learning Tasks for Tourism Studies. UNED - Universidad Nacional de Educación a Distancia, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.