Santrock John W. (2019). Life Span Development (13th.). McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Santrock John W. Life Span Development. 13th. McGraw Hill, 2019.
Lua MLA (9ú heag.)Santrock John W. Life Span Development. 13th. McGraw Hill, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.