Maskus, K. E. (1981). The changing structure of comparative advantage in American manufacturing. Ann Arbor- Michigan: Umi Research Press.
استشهاد بنمط شيكاغوMaskus, Keith E. The Changing Structure of Comparative Advantage in American Manufacturing. Ann Arbor- Michigan: Umi Research Press, 1981.
MLA استشهادMaskus, Keith E. The Changing Structure of Comparative Advantage in American Manufacturing. Ann Arbor- Michigan: Umi Research Press, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.