Ryans, J. K. (1990). Marketing strategies for the new Europe. New York: American marketing Association.
Trích dẫn kiểu ChicagoRyans, John K. Marketing Strategies for the New Europe. New York: American marketing Association, 1990.
Deismireacht MLARyans, John K. Marketing Strategies for the New Europe. New York: American marketing Association, 1990.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.