Παραπομπή APA

Westwood, J. (1990). The marketing plan: A practitioners guide. Kogan page.

Παραπομπή Chicago Style

Westwood, John. The Marketing Plan: A Practitioners Guide. London: Kogan page, 1990.

Παραπομπή MLA

Westwood, John. The Marketing Plan: A Practitioners Guide. Kogan page, 1990.