Παραπομπή APA

Gerben Van Den Berg. (2014). Eight steps to strategic success: Unleashing the power of engagement. Kogan page.

Παραπομπή Chicago Style

Gerben Van Den Berg. Eight Steps to Strategic Success: Unleashing the Power of Engagement. London: Kogan page, 2014.

Παραπομπή MLA

Gerben Van Den Berg. Eight Steps to Strategic Success: Unleashing the Power of Engagement. Kogan page, 2014.