International Labour Office & Dickson, D. E. N. (1986). Improve your business: Workbook. International Labour Office.
芝加哥风格引文International Labour Office 与 D. E. N. Dickson. Improve Your Business: Workbook. Geneva: International Labour Office, 1986.
MLA引文International Labour Office 与 D. E. N. Dickson. Improve Your Business: Workbook. International Labour Office, 1986.
警告：这些引文格式不一定是100％准确.