Birt, I. (2005). Marketing and promoting your business: Products and services. Australia: Pearson Education.
استشهاد بنمط شيكاغوBirt, Ian. Marketing and Promoting Your Business: Products and Services. Australia: Pearson Education, 2005.
MLA استشهادBirt, Ian. Marketing and Promoting Your Business: Products and Services. Australia: Pearson Education, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.