APA-viite (7. p.)

Paul, J. (2019). Business Environment: Text and Cases (4th.). McGraw Hill.

Chicago-viite (17. p.)

Paul, Justin. Business Environment: Text and Cases. 4th. Chennai: McGraw Hill, 2019.

MLA-viite (9. p.)

Paul, Justin. Business Environment: Text and Cases. 4th. McGraw Hill, 2019.