Cita APA (7a ed.)

Dukes, C., & Smith, M. (2007). Developing pre-school communication and language. Paul Chapman.

Cita Chicago Style (17a ed.)

Dukes, Chris, y Maggie Smith. Developing Pre-school Communication and Language. London ; Thousand Oaks, Calif.: Paul Chapman, 2007.

Cita MLA (8a ed.)

Dukes, Chris, y Maggie Smith. Developing Pre-school Communication and Language. Paul Chapman, 2007.