APA Edition Citation

Smith, P. K., Cowie, H., & Blades, M. (2015). Understanding children's development (Sixth edition.). Wiley.

Chicago Edition Citation

Smith, Peter K., Helen Cowie, and Mark Blades. Understanding Children's Development. Sixth edition. UK: Wiley, 2015.

MLA Edition Citation

Smith, Peter K., et al. Understanding Children's Development. Sixth edition. Wiley, 2015.