Child Study Association of America/Wel-Met & Gruenberg, B. C. (1926). Guidance of childhood and youth: Readings in child study. Macmillan.
Lua i Stíl Chicago (17ú heag.)Child Study Association of America/Wel-Met agus Benjamin C. Gruenberg. Guidance of Childhood and Youth: Readings in Child Study. New York: Macmillan, 1926.
Lua MLA (8ú heag.)Child Study Association of America/Wel-Met agus Benjamin C. Gruenberg. Guidance of Childhood and Youth: Readings in Child Study. Macmillan, 1926.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.