West, D. (2006). Strategic Marketing (3rd.). Prenctice-Hall India Pvt. Ltd.
Cita Chicago (17th ed.)West, Douglas. Strategic Marketing. 3rd. New Delhi: Prenctice-Hall India Pvt. Ltd, 2006.
Cita MLA (9th ed.)West, Douglas. Strategic Marketing. 3rd. Prenctice-Hall India Pvt. Ltd, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.