Aitken, R. Loud and clear. Teacher's Book.
Cita Chicago (17th ed.)Aitken, Rosemary. Loud and Clear. Teacher's Book.
Cita MLA (8th ed.)Aitken, Rosemary. Loud and Clear. Teacher's Book.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)