INTERNATIONAL LABOUR OFFICE. (1977). INTRODUCTION TO WORKS STUDY (REV. ED.). INTERNATIONAL LABOUR ORGANIZATION.
Čikaški stil citiranja (17. izdanje)INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORKS STUDY. REV. ED. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1977.
MLA način citiranja (9. izdanje)INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORKS STUDY. REV. ED. INTERNATIONAL LABOUR ORGANIZATION, 1977.
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