Glueck, S. (1959). The problem of delinquency. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Glueck, Sheldon. The Problem of Delinquency. Boston: Houghton Mifflin, 1959.
Lua MLA (9ú heag.)Glueck, Sheldon. The Problem of Delinquency. Houghton Mifflin, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.