Cowan, D. A., & Jones , R. (1968). Advertising in the 21st century: A model of advertising agency development during the next FIFTY YEARS.
استشهاد بنمط شيكاغوCowan, Ds And, و Rw Jones. Advertising in the 21st Century: A Model of Advertising Agency Development During the Next FIFTY YEARS. 1968.
MLA استشهادCowan, Ds And, و Rw Jones. Advertising in the 21st Century: A Model of Advertising Agency Development During the Next FIFTY YEARS. 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.