Brass and Bronze Ingot Institute (Chicago, Ill.), & United States. National Air Pollution Control Administration. (1969). Air pollution aspects of brass and bronze smelting and refining industry. U. S. National Air Pollution Control Administration; [for sale by the Supt. of Docs., U. S. Govt. Print. Off.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Brass and Bronze Ingot Institute (Chicago, Ill.), و United States. National Air Pollution Control Administration. Air Pollution Aspects of Brass and Bronze Smelting and Refining Industry. Raleigh, N. C.: U. S. National Air Pollution Control Administration; [for sale by the Supt. of Docs., U. S. Govt. Print. Off.], 1969.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Brass and Bronze Ingot Institute (Chicago, Ill.), و United States. National Air Pollution Control Administration. Air Pollution Aspects of Brass and Bronze Smelting and Refining Industry. U. S. National Air Pollution Control Administration; [for sale by the Supt. of Docs., U. S. Govt. Print. Off.], 1969.