Cita APA

British Broadcasting Corporation, & British Broadcasting Corporation. (1991). The missing jewel: English by radio. [Lugar de publicación no identificado]: [editor no identificado].

Citación estilo Chicago

British Broadcasting Corporation, y British Broadcasting Corporation. The Missing Jewel: English By Radio. [Lugar de publicación no identificado]: [editor no identificado], 1991.

Cita MLA

British Broadcasting Corporation, y British Broadcasting Corporation. The Missing Jewel: English By Radio. [Lugar de publicación no identificado]: [editor no identificado], 1991.