Cita APA (7a ed.)

Clark, M., & Waller, T. (2007). Early childhood education and care: Policy and practice. SAGE Publications.

Cita Chicago Style (17a ed.)

Clark, Margaret, y Tim Waller. Early Childhood Education and Care: Policy and Practice. Thousand Oaks, CA: SAGE Publications, 2007.

Cita MLA (8a ed.)

Clark, Margaret, y Tim Waller. Early Childhood Education and Care: Policy and Practice. SAGE Publications, 2007.