Marking articles made of silver in combination with gold /
National Bureau of Standards.
APA Citation
United States. National Bureau of Standards., United States. National Bureau of Standards. (1935). Marking articles made of silver in combination with gold. Washington, D.C.: Department of Commerce, National Bureau of Standards.
MLA Citation
United States. National Bureau of Standards, and United States. National Bureau of Standards. Marking Articles Made of Silver In Combination With Gold. Washington, D.C.: Department of Commerce, National Bureau of Standards, 1935.
Warning: These citations may not always be complete (especially for serials).