INTERNATIONAL LABOUR OFFICE. (1977). INTRODUCTION TO WORKS STUDY (REV. ED.). INTERNATIONAL LABOUR ORGANIZATION.
Chicago-čujuhus (17. p.)INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORKS STUDY. REV. ED. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1977.
MLA-čujuhus (9. p.)INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORKS STUDY. REV. ED. INTERNATIONAL LABOUR ORGANIZATION, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.