World Trade Organization. (1995). Second protocol to the general agreement on trade in services. WTO.
استشهاد بنمط شيكاغوWorld Trade Organization. Second Protocol to the General Agreement on Trade in Services. Geneva: WTO, 1995.
MLA استشهادWorld Trade Organization. Second Protocol to the General Agreement on Trade in Services. WTO, 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.