Sharma, R. C. (2002). Business Correspondence and Report Writing. Dorling Kindersley.
Lua i Stíl Chicago (17ú heag.)Sharma, R C. Business Correspondence and Report Writing. New Delhi: Dorling Kindersley, 2002.
Lua MLA (9ú heag.)Sharma, R C. Business Correspondence and Report Writing. Dorling Kindersley, 2002.
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