Jefferson, S. T. (2012). Valuable content marketing: Why quality content is key to business success.
استشهاد بنمط شيكاغوJefferson, Sonja; Tanton. Valuable Content Marketing: Why Quality Content Is Key to Business Success. Kogan Page Inda Pvt Ltd: New Delhi, 2012.
MLA استشهادJefferson, Sonja; Tanton. Valuable Content Marketing: Why Quality Content Is Key to Business Success. 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.