ING. (2017). Cambridge Primary Mathematics Second Edition Workbook-4 (Second Edition.). Hodder Education.
Chicago Style aipamenaING. Cambridge Primary Mathematics Second Edition Workbook-4. Second Edition. London: Hodder Education, 2017.
MLA aipamenaING. Cambridge Primary Mathematics Second Edition Workbook-4. Second Edition. Hodder Education, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.