(1975). A Study of the evolution of concentration in the mechanical engineering sector for the United Kingdom. Luxembourg: Commission of the European Communities.
استشهاد بنمط شيكاغوA Study of the Evolution of Concentration in the Mechanical Engineering Sector for the United Kingdom. Luxembourg: Commission of the European Communities, 1975.
MLA استشهادA Study of the Evolution of Concentration in the Mechanical Engineering Sector for the United Kingdom. Luxembourg: Commission of the European Communities, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.