APA (7e ed.) Bronvermelding

BIG ELEPHANT FOUNDATION. (2012). MIND TWISTER MATHS OLYMPIAD WORKBOOK- 5. BIG ELEPHANT FOUNDATION.

Chicago (17e ed.) Bronvermelding

BIG ELEPHANT FOUNDATION. MIND TWISTER MATHS OLYMPIAD WORKBOOK- 5. BIG ELEPHANT FOUNDATION, 2012.

MLA (9e ed.) Bronvermelding

BIG ELEPHANT FOUNDATION. MIND TWISTER MATHS OLYMPIAD WORKBOOK- 5. BIG ELEPHANT FOUNDATION, 2012.

Let op: Deze citaties zijn niet altijd 100% accuraat.