Não informado. (1972). Children today. Administration for Children's and Families.
Chicago-referens (17:e uppl.)Não informado. Children Today. Washington: Administration for Children's and Families, 1972.
MLA-referens (8:e uppl.)Não informado. Children Today. Administration for Children's and Families, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.