Paul Justin. (2010). Business Environment: Text and Cases (3rd.). McGraw Hill.
芝加哥风格引文Paul Justin. Business Environment: Text and Cases. 3rd. McGraw Hill, 2010.
MLA引文Paul Justin. Business Environment: Text and Cases. 3rd. McGraw Hill, 2010.
警告：这些引文格式不一定是100％准确.