INTERNATIONAL LABOUR OFFICE. (1977). INTRODUCTION TO WORKS STUDY (REV. ED.). INTERNATIONAL LABOUR ORGANIZATION.
芝加哥风格引文INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORKS STUDY. REV. ED. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1977.
MLA引文INTERNATIONAL LABOUR OFFICE. INTRODUCTION TO WORKS STUDY. REV. ED. INTERNATIONAL LABOUR ORGANIZATION, 1977.
警告：这些引文格式不一定是100％准确.