Phillips, S., & McArdle, S. (1999). Maths made easy: Key stage 1. Dorling Kindersley.
Chicagoスタイル(17版)引用形式Phillips, Sue, , Sean McArdle. Maths Made Easy: Key Stage 1. London: Dorling Kindersley, 1999.
MLA(9版)引用形式Phillips, Sue, , Sean McArdle. Maths Made Easy: Key Stage 1. Dorling Kindersley, 1999.
警告: この引用は必ずしも正確ではありません.