APA
United States, U. S. National Labor Relations Board & U. S. Courts. (1940). Labor cases: a selected reporter of decisions rendered by federal & state reports throughout the United States on federal & state labor problems, with case table and topical index. New York, Chicago, etc: Commerce Clearing House.
Chicago
United States, U. S. National Labor Relations Board and U. S. Courts. 1940. Labor cases: a selected reporter of decisions rendered by federal & state reports throughout the United States on federal & state labor problems, with case table and topical index. New York, Chicago, etc: Commerce Clearing House.
Harvard
United States, U. S. National Labor Relations Board and U. S. Courts. (1940). Labor cases: a selected reporter of decisions rendered by federal & state reports throughout the United States on federal & state labor problems, with case table and topical index. New York, Chicago, etc: Commerce Clearing House.
MLA
United States, U. S. National Labor Relations Board and U. S. Courts. Labor cases: a selected reporter of decisions rendered by federal & state reports throughout the United States on federal & state labor problems, with case table and topical index. New York, Chicago, etc: Commerce Clearing House. 1940.