Frank, T., & Ray, D. (1979). Basic business and professional speech communication. Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrank, Ted, और David Ray. Basic Business and Professional Speech Communication. Englewood Cliffs, NJ: Prentice-Hall, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFrank, Ted, और David Ray. Basic Business and Professional Speech Communication. Prentice-Hall, 1979.
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