Child Welfare League of America. (1971). A manual for foster parents. Child Welfare League of America.
Lua i Stíl Chicago (17ú heag.)Child Welfare League of America. A Manual for Foster Parents. N.Y.: Child Welfare League of America, 1971.
Lua MLA (8ú heag.)Child Welfare League of America. A Manual for Foster Parents. Child Welfare League of America, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.