BARR, D. W. (1980). Communication For Business, Professional, And Technical Students Professional , And Technical Students Doris W. Barr. Wadsworth Publishing Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBARR, Doris W. Communication For Business, Professional, And Technical Students Professional , And Technical Students Doris W. Barr. Wadsworth Publishing Company, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBARR, Doris W. Communication For Business, Professional, And Technical Students Professional , And Technical Students Doris W. Barr. Wadsworth Publishing Company, 1980.
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