Lesikar, Raymond V., Business communications : Making Connections in a Digital World ,Raymond V. Lesikar, Marine E. Flatley Kathryn Rentz, et.al. - 11th ed. - New Delhi : Tata McGraw Hill Educations Private Limited, c2008. - xxix 737 p.: [137] ISBN: 9780070146808 Dewey Class. No.: 658.45 / LES/BUS