Sharma, R. (2011). Business Correspondence and Report Writing (4th.). Tata McGraw Hill.
Chicago-viite (17. p.)Sharma, R.C. Business Correspondence and Report Writing. 4th. Tata McGraw Hill, 2011.
MLA-viite (9. p.)Sharma, R.C. Business Correspondence and Report Writing. 4th. Tata McGraw Hill, 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.