Cita APA (7a ed.)

Smith, P. K., Cowie, H., & Blades, M. (1998). Understanding children's development (3rd ed.). Blackwell.

Cita Chicago Style (17a ed.)

Smith, Peter K., Helen Cowie, y Mark Blades. Understanding Children's Development. 3rd ed. Oxford [etc.]: Blackwell, 1998.

Cita MLA (9a ed.)

Smith, Peter K., et al. Understanding Children's Development. 3rd ed. Blackwell, 1998.