APA (7th ed.) Citation

Phillips, S., & McArdle, S. (1999). Maths made easy: Key stage 1. Dorling Kindersley.

Chicago Style (17th ed.) Citation

Phillips, Sue, and Sean McArdle. Maths Made Easy: Key Stage 1. London: Dorling Kindersley, 1999.

MLA (9th ed.) Citation

Phillips, Sue, and Sean McArdle. Maths Made Easy: Key Stage 1. Dorling Kindersley, 1999.