Cita APA (7a ed.)
Johnson, L. A. Employing the Hard-Core Unemployed. American Management Association.
Cita estilo Chicago (17a ed.)
Johnson, Lawrence A. Employing the Hard-Core Unemployed. Nueva York, EUA: American Management Association.
Cita MLA (9a ed.)
Johnson, Lawrence A. Employing the Hard-Core Unemployed. American Management Association.
Precaución: Estas citas no son 100% exactas.