Jo Lally. (2016). Complete Global Perspectives for Cambridge IGCSE (CIE IGCSE Complete Series) (2.). Oxford University Press.
Čikaški stil citiranja (17. izdanje)Jo Lally. Complete Global Perspectives for Cambridge IGCSE (CIE IGCSE Complete Series). 2. Oxford University Press, 2016.
MLA način citiranja (9. izdanje)Jo Lally. Complete Global Perspectives for Cambridge IGCSE (CIE IGCSE Complete Series). 2. Oxford University Press, 2016.
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