APA (7th ed.) Zitazioa
Johnson, L. A. Employing the Hard-Core Unemployed. American Management Association.
Chicago Style (17th ed.) Zitazioa
Johnson, Lawrence A. Employing the Hard-Core Unemployed. Nueva York, EUA: American Management Association.
MLA (9th ed.) Zitazioa
Johnson, Lawrence A. Employing the Hard-Core Unemployed. American Management Association.
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