Cita APA (7th ed.)

Smith, M., Arfin, S. M., & Lott, I. T. (2006). Mental retardation and developmental delay: Genetic and epigenetic factors. Oxford University Press.

Cita Chicago (17th ed.)

Smith, Moyra, Stuart M. Arfin, i Ira T. Lott. Mental Retardation and Developmental Delay: Genetic and Epigenetic Factors. New York, N.Y.: Oxford University Press, 2006.

Cita MLA (9th ed.)

Smith, Moyra, et al. Mental Retardation and Developmental Delay: Genetic and Epigenetic Factors. Oxford University Press, 2006.