Cita APA (7th ed.)
Collis, D. International Strategy: Context, Concepts and Implications. Wiley.
Cita Chicago (17th ed.)
Collis, David. International Strategy: Context, Concepts and Implications. Sussex Occidental, Inglaterra: Wiley.
Cita MLA (9th ed.)
Collis, David. International Strategy: Context, Concepts and Implications. Wiley.
Atenció: Aquestes cites poden no estar 100% correctes.