Paul, J. (2019). Business Environment: Text and Cases (4th.). McGraw Hill.
芝加哥风格引文Paul, Justin. Business Environment: Text and Cases. 4th. Chennai: McGraw Hill, 2019.
MLA引文Paul, Justin. Business Environment: Text and Cases. 4th. McGraw Hill, 2019.
警告：这些引文格式不一定是100％准确.