Ellis, J., & Williams, D. (1995). International business strategy. Financial Times Prentice Hall/Pearson Education.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ellis, John, και David Williams. International Business Strategy. Harlow: Financial Times Prentice Hall/Pearson Education, 1995.
Παραπομπή σε μορφή MLA (9th εκδ.)Ellis, John, και David Williams. International Business Strategy. Financial Times Prentice Hall/Pearson Education, 1995.