(2014). Help your kids with math: A unique step-by-step visual guide (Rev. and updated new edition.). DK Publishing.
Style de citation Chicago (17e éd.)Help Your Kids with Math: A Unique Step-by-step Visual Guide. Rev. and updated new edition. New York: DK Publishing, 2014.
Style de citation MLA (8e éd.)Help Your Kids with Math: A Unique Step-by-step Visual Guide. Rev. and updated new edition. DK Publishing, 2014.
Attention : ces citations peuvent ne pas être correctes à 100%.