APA-referens (7:e uppl.)

Paul, J. (2009). Business environment: Text and cases (Second edition.). Tata McGraw-Hill Publishing.

Chicago-referens (17:e uppl.)

Paul, Justin. Business Environment: Text and Cases. Second edition. New Delhi: Tata McGraw-Hill Publishing, 2009.

MLA-referens (8:e uppl.)

Paul, Justin. Business Environment: Text and Cases. Second edition. Tata McGraw-Hill Publishing, 2009.