APA
                    Sharma R. C. M. K., . (2016). Business correspondence and report writing : a practical approach to business and technical communication. 5th ed. McGraw Hill Education: New Delhi.
                
                    Chicago
                    Sharma R C Mohan Krishna, . 2016. Business correspondence and report writing : a practical approach to business and technical communication. 5th ed. McGraw Hill Education: New Delhi.
                
                    Harvard
                    Sharma R. C. M. K., . (2016). Business correspondence and report writing : a practical approach to business and technical communication. 5th ed. McGraw Hill Education: New Delhi.
                
                    MLA
                    Sharma R C Mohan Krishna, . Business correspondence and report writing : a practical approach to business and technical communication. 5th ed. McGraw Hill Education: New Delhi. 2016.