United States. National Bureau of Standards. (1942). Eaves Trough, Conductor Pipe, and Fittings, and Ridge Rolls. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. National Bureau of Standards. Eaves Trough, Conductor Pipe, and Fittings, and Ridge Rolls. [Washington]: [publisher not identified], 1942.
MLA (9th ed.) CitationUnited States. National Bureau of Standards. Eaves Trough, Conductor Pipe, and Fittings, and Ridge Rolls. [publisher not identified], 1942.
Warning: These citations may not always be 100% accurate.