Christopher, M. (1991). Relationship marketing: Bringing quality, customer service, and marketing together. Oxford; Boston: Butterworth-Heinemann.
استشهاد بنمط شيكاغوChristopher, Martin. Relationship Marketing: Bringing Quality, Customer Service, and Marketing Together. Oxford; Boston: Butterworth-Heinemann, 1991.
MLA استشهادChristopher, Martin. Relationship Marketing: Bringing Quality, Customer Service, and Marketing Together. Oxford; Boston: Butterworth-Heinemann, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.