3G E-Learning LLC, USA. (2017). Management information system. 3G E-Learning LLC.
芝加哥风格引文3G E-Learning LLC, USA. Management Information System. New York, NY: 3G E-Learning LLC, 2017.
MLA引文3G E-Learning LLC, USA. Management Information System. 3G E-Learning LLC, 2017.
警告：这些引文格式不一定是100％准确.