Cita APA (7a ed.)

ESCOBAR ÁLVAREZ, M. Á. A. (2010). English grammar and learning tasks for tourism studies. UNED.

Cita Chicago Style (17a ed.)

ESCOBAR ÁLVAREZ, Ma Ángeles Autor. English Grammar and Learning Tasks for Tourism Studies. ES: UNED, 2010.

Cita MLA (9a ed.)

ESCOBAR ÁLVAREZ, Ma Ángeles Autor. English Grammar and Learning Tasks for Tourism Studies. UNED, 2010.