INTERNATIONAL LABOUR OFFICE. (1986). INTRODUCTION TO WORK STUDY (3.). INTERNATIONAL LABOUR ORGANIZATION.
Chicago-čujuhus (17. p.)INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORK STUDY. 3. BOMBAY: INTERNATIONAL LABOUR ORGANIZATION, 1986.
MLA-čujuhus (9. p.)INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORK STUDY. 3. INTERNATIONAL LABOUR ORGANIZATION, 1986.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.