Nigel Buckle. Mathematics Higher Level Core (IB Mathematics) (4th edition.). IBID Press.
Lua i Stíl Chicago (17ú heag.)Nigel Buckle. Mathematics Higher Level Core (IB Mathematics). 4th edition. IBID Press.
Lua MLA (9ú heag.)Nigel Buckle. Mathematics Higher Level Core (IB Mathematics). 4th edition. IBID Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.