Ellis, J., & Williams, D. (1995). International business strategy. Financial Times Prentice Hall/Pearson Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEllis, John, और David Williams. International Business Strategy. Harlow: Financial Times Prentice Hall/Pearson Education, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEllis, John, और David Williams. International Business Strategy. Financial Times Prentice Hall/Pearson Education, 1995.