Ellis, J., & Williams, D. (1995). International business strategy. Financial Times Prentice Hall/Pearson Education.
Chicago Style (17th ed.) ZitazioaEllis, John, eta David Williams. International Business Strategy. Harlow: Financial Times Prentice Hall/Pearson Education, 1995.
MLA (9th ed.) ZitazioaEllis, John, eta David Williams. International Business Strategy. Financial Times Prentice Hall/Pearson Education, 1995.