Cita APA (7a ed.)

Sigman, M., Ruskin, E., & Arbelle, S. (1999). Continuity and change in the social competence of children with autism, Down syndrome, and developmental delays. Society for Research in Child Development.

Cita Chicago Style (17a ed.)

Sigman, Marian, Ellen Ruskin, y Shoshana Arbelle. Continuity and Change in the Social Competence of Children with Autism, Down Syndrome, and Developmental Delays. Malden, Massachusetts: Society for Research in Child Development, 1999.

Cita MLA (9a ed.)

Sigman, Marian, et al. Continuity and Change in the Social Competence of Children with Autism, Down Syndrome, and Developmental Delays. Society for Research in Child Development, 1999.