United States Steel Corporation. (1955). Electrical steel sheets: Engineering manual (4th ed.). United States Steel Corporation.
芝加哥风格引文United States Steel Corporation. Electrical Steel Sheets: Engineering Manual. 4th ed. Pittsburgh, Pa.: United States Steel Corporation, 1955.
MLA引文United States Steel Corporation. Electrical Steel Sheets: Engineering Manual. 4th ed. United States Steel Corporation, 1955.
警告：这些引文格式不一定是100％准确.