1. Administration for Children and Families. (2013). Report to congress on dual language learners in Head Start and early Head Start programs. Washington, DC: U. S. Department of Health and Human Services.
2. Anderson, R. T. (2012). First language loss in Spanish-speaking children: Patterns of loss and implications for clinical practice. In B. A. Goldstein (Ed.), Bilingual language development and disorders in Spanish-English speakers (pp. 187–211). Baltimore: Brookes.
3. Barrueco, S., Lopez, M., Ong, C., & Lozano, P. (2012). Assessing Spanish-English bilingual preschoolers: A guide to best approaches and measures. Baltimore: Brookes Publishing Company.
4. Bridges, K., & Hoff, E. (2012). Older sibling influences on the language environment and language development of toddlers in bilingual homes. Applied Psycholinguistics, 1, 1–17.
https://doi.org/10.1017/S0142716412000379
.
5. Bronfenbrenner, U. (2001). The bioecological theory of human development. In N. J. Smelser & P. B. Baltes (Ed.s), International encyclopedia of the social and behavioral sciences (Vol. 10, pp. 6963–6970). New York: Elsevier.