Lally, J. (2015). Complete Global Perspectives For Cambridge IGCSE & O Level Second Edition (2nd.). Oxford University Press.
Chicago-viite (17. p.)Lally, Jo. Complete Global Perspectives For Cambridge IGCSE & O Level Second Edition. 2nd. UK: Oxford University Press, 2015.
MLA-viite (9. p.)Lally, Jo. Complete Global Perspectives For Cambridge IGCSE & O Level Second Edition. 2nd. Oxford University Press, 2015.
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