ING. (2017). Cambridge Primary Mathematics Second Edition Workbook-4 (Second Edition.). Hodder Education.
Chicago-čujuhus (17. p.)ING. Cambridge Primary Mathematics Second Edition Workbook-4. Second Edition. London: Hodder Education, 2017.
MLA-čujuhus (9. p.)ING. Cambridge Primary Mathematics Second Edition Workbook-4. Second Edition. Hodder Education, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.