Riddle, D. (2001). Innovating for success in the export of services: A handbook. International Trade Centre.
芝加哥风格引文Riddle, Dorothy. Innovating for Success in the Export of Services: A Handbook. Geneva: International Trade Centre, 2001.
MLA引文Riddle, Dorothy. Innovating for Success in the Export of Services: A Handbook. International Trade Centre, 2001.
警告：这些引文格式不一定是100％准确.