Marian Cox. (2010). Cambridge IGCSE First Language English Workbook (Cambridge International IGCSE) (3.). CAMBRIDGE UNIVERSITY PRESS.
Chicago-čujuhus (17. p.)Marian Cox. Cambridge IGCSE First Language English Workbook (Cambridge International IGCSE). 3. CAMBRIDGE UNIVERSITY PRESS, 2010.
MLA-čujuhus (9. p.)Marian Cox. Cambridge IGCSE First Language English Workbook (Cambridge International IGCSE). 3. CAMBRIDGE UNIVERSITY PRESS, 2010.
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