United States. National Labor Relations Board. Classification outline with topical index for decisions of the National Labor Relations Board and related court decisions. National Labor Relations Board.
Chicago Style (17th ed.) CitationUnited States. National Labor Relations Board. Classification Outline with Topical Index for Decisions of the National Labor Relations Board and Related Court Decisions. [Washington, D.C.]: National Labor Relations Board.
MLA引文United States. National Labor Relations Board. Classification Outline with Topical Index for Decisions of the National Labor Relations Board and Related Court Decisions. National Labor Relations Board.
警告：这些引文格式不一定是100％准确.