Aitken, R. Loud and clear. Teacher's Book.
Cita Chicago Style (17a ed.)Aitken, Rosemary. Loud and Clear. Teacher's Book.
Cita MLA (8a ed.)Aitken, Rosemary. Loud and Clear. Teacher's Book.
Precaución: Estas citas no son 100% exactas.
Cita APA (7a ed.)