De Klerk, J. (1999). Illustrated maths dictionary (Third edition.). Longman.
Chicago-viite (17. p.)De Klerk, Judith. Illustrated Maths Dictionary. Third edition. Melbourne: Longman, 1999.
MLA-viite (8. p.)De Klerk, Judith. Illustrated Maths Dictionary. Third edition. Longman, 1999.
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