Nigel Buckle. Mathematics Higher Level Core (IB Mathematics) (4th edition.). IBID Press.
Čikaški stil citiranja (17. izdanje)Nigel Buckle. Mathematics Higher Level Core (IB Mathematics). 4th edition. IBID Press.
MLA način citiranja (9. izdanje)Nigel Buckle. Mathematics Higher Level Core (IB Mathematics). 4th edition. IBID Press.
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