APA (7e ed.) Bronvermelding

KIDDIBIRD SDN BHD PUB. UNDERSTAND THE NUMBERS: EASY ARITHMATIC SERIES.

Chicago (17e ed.) Bronvermelding

KIDDIBIRD SDN BHD PUB. UNDERSTAND THE NUMBERS: EASY ARITHMATIC SERIES.

MLA (9e ed.) Bronvermelding

KIDDIBIRD SDN BHD PUB. UNDERSTAND THE NUMBERS: EASY ARITHMATIC SERIES.

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