Justin Paul. (2018). Business Environment (4th ed.). Mc Graw Hill Education.
芝加哥风格引文Justin Paul. Business Environment. 4th ed. Mc Graw Hill Education, 2018.
MLA引文Justin Paul. Business Environment. 4th ed. Mc Graw Hill Education, 2018.
警告：这些引文格式不一定是100％准确.