University Of Cambridge. (2019). CIE: Songs of Ourselves :IGCSE /O level/ AS and A Level. CAMBRIDGE UNIVERSITY PRESS.
Chicago-referens (17:e uppl.)University Of Cambridge. CIE: Songs of Ourselves :IGCSE /O Level/ AS and A Level. CAMBRIDGE UNIVERSITY PRESS, 2019.
MLA-referens (9:e uppl.)University Of Cambridge. CIE: Songs of Ourselves :IGCSE /O Level/ AS and A Level. CAMBRIDGE UNIVERSITY PRESS, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.