Lua APA (7ú heag.)

Johnson, L. A. (1969). Employing the hard-core unemployed. American Management Association.

Lua i Stíl Chicago (17ú heag.)

Johnson, Lawrence Alexander. Employing the Hard-core Unemployed. [New York]: American Management Association, 1969.

Lua MLA (8ú heag.)

Johnson, Lawrence Alexander. Employing the Hard-core Unemployed. American Management Association, 1969.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.