Paul, J. (2019). Business Environment (4th.). Mc Graw Hill.
Cita Chicago (17th ed.)Paul, Justin. Business Environment. 4th. Mc Graw Hill, 2019.
Cita MLA (9th ed.)Paul, Justin. Business Environment. 4th. Mc Graw Hill, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.