Geoffrey Leech, J. S. (2002). <A >comunicative grammar of english. Pearson Education.
Citación estilo ChicagoGeoffrey Leech, Jan Svartvik. <A >comunicative Grammar of English. Pearson Education, 2002.
Cita MLAGeoffrey Leech, Jan Svartvik. <A >comunicative Grammar of English. Pearson Education, 2002.
Warning: These citations may not always be 100% accurate.