HALFF, G., & GREGORY, A. (2015). What is public relations to society? Toward an economically informed understanding of public relations. Institutional Knowledge at Singapore Management University.
استشهاد بنمط شيكاغوHALFF, Gregor,, و Anne GREGORY. What Is Public Relations to Society? Toward an Economically Informed Understanding of Public Relations. Institutional Knowledge at Singapore Management University, 2015.
MLA استشهادHALFF, Gregor,, و Anne GREGORY. What Is Public Relations to Society? Toward an Economically Informed Understanding of Public Relations. Institutional Knowledge at Singapore Management University, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.