BHATIA R L. (1994). DEVELOPING PRESENTATION SKILLS: A HANDY GUIDE FOR EXECUTIVES. A H WHEELER & CO.
Lua i Stíl Chicago (17ú heag.)BHATIA R L. DEVELOPING PRESENTATION SKILLS: A HANDY GUIDE FOR EXECUTIVES. NEW DELHI: A H WHEELER & CO, 1994.
Lua MLA (9ú heag.)BHATIA R L. DEVELOPING PRESENTATION SKILLS: A HANDY GUIDE FOR EXECUTIVES. A H WHEELER & CO, 1994.
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