Cogen, V. (2001). Boosting the Adolescent Underachiever: How Parents Can Change a C Student Into an A Student. Perseus Books Group.
Lua i Stíl Chicago (17ú heag.)Cogen, Victor. Boosting the Adolescent Underachiever: How Parents Can Change a C Student Into an A Student. Perseus Books Group, 2001.
Lua MLA (9ú heag.)Cogen, Victor. Boosting the Adolescent Underachiever: How Parents Can Change a C Student Into an A Student. Perseus Books Group, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.