Schaffer, H. R. (2004). Introducing child psychology. Blackwell Publishing..
Lua i Stíl Chicago (17ú heag.)Schaffer, H. Rudolph. Introducing Child Psychology. Malden, MA: Blackwell Publishing., 2004.
Lua MLA (8ú heag.)Schaffer, H. Rudolph. Introducing Child Psychology. Blackwell Publishing., 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.