«Postadoption Contact Agreements Between Birth and Adoptive Families». U.S. Department of Health and Human Services, Administration for Children and Families, Administration on Children, Youth and Families, Children's Bureau. 2005. Consultado em 2 de julho de 2015. Arquivado do original em 13 de maio de 2008.
«Postadoption Contact Agreements Between Birth and Adoptive Families». U.S. Department of Health and Human Services, Administration for Children and Families, Administration on Children, Youth and Families, Children's Bureau. 2005. Consultado em 2 de julho de 2015. Arquivado do original em 13 de maio de 2008.
