United States. Bureau of Standards. (1938). Safety rules for the operation of electric equipment and lines: Comprising part 4 of the 5th edition, National electrical safety code. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Standards. Safety Rules for the Operation of Electric Equipment and Lines: Comprising Part 4 of the 5th Edition, National Electrical Safety Code. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Standards. Safety Rules for the Operation of Electric Equipment and Lines: Comprising Part 4 of the 5th Edition, National Electrical Safety Code. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.