(1987). Long-term trends and underlying factors affecting steel consumption in the United States. Washington: U. S. department of Commerce.
استشهاد بنمط شيكاغوLong-term Trends and Underlying Factors Affecting Steel Consumption in the United States. Washington: U. S. department of Commerce, 1987.
MLA استشهادLong-term Trends and Underlying Factors Affecting Steel Consumption in the United States. Washington: U. S. department of Commerce, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.