Secretary-General. (1983). The generalised system of preferences: Review of the first decade. France: Organisation for Economic Co-operation and Development.
استشهاد بنمط شيكاغوSecretary-General. The Generalised System of Preferences: Review of the First Decade. France: Organisation for Economic Co-operation and Development, 1983.
MLA استشهادSecretary-General. The Generalised System of Preferences: Review of the First Decade. France: Organisation for Economic Co-operation and Development, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.