APA (7th ed.) Citation

Killen, P., & Hindhaugh, S. (2018). How big is a big number?: Learning to teach mathematics in the primary school. SAGE | Learning Matters.

Chicago Style (17th ed.) Citation

Killen, Paul, and Sarah Hindhaugh. How Big Is a Big Number?: Learning to Teach Mathematics in the Primary School. 55 City Road: SAGE | Learning Matters, 2018.

MLA (9th ed.) Citation

Killen, Paul, and Sarah Hindhaugh. How Big Is a Big Number?: Learning to Teach Mathematics in the Primary School. SAGE | Learning Matters, 2018.