Cita APA (7th ed.)

Escobar Álvarez, M. A. (2011). English grammar and learning tasks for tourism studies. UNED - Universidad Nacional de Educación a Distancia.

Cita Chicago (17th ed.)

Escobar Álvarez, María Ángeles. English Grammar and Learning Tasks for Tourism Studies. Madrid: UNED - Universidad Nacional de Educación a Distancia, 2011.

Cita MLA (9th ed.)

Escobar Álvarez, María Ángeles. English Grammar and Learning Tasks for Tourism Studies. UNED - Universidad Nacional de Educación a Distancia, 2011.