SPARKS (Suzanne D.), . (2003). The Managers Guide to Business Writing. : Tata McGraw-Hil Publication Company Limited . Delhi.
SPARKS (Suzanne D.), . 2003. The Managers Guide to Business Writing. : Tata McGraw-Hil Publication Company Limited . Delhi.
SPARKS (Suzanne D.), . The Managers Guide to Business Writing. : Tata McGraw-Hil Publication Company Limited . Delhi. 2003.