International Labour Office. (1970). Introduction to social security: A workers educational manual. International Labour Office.
シカゴスタイル引用形International Labour Office. Introduction to Social Security: A Workers Educational Manual. Geneva: International Labour Office, 1970.
MLA引用形式International Labour Office. Introduction to Social Security: A Workers Educational Manual. International Labour Office, 1970.
警告: この引用は必ずしも正確ではありません.