Bureau of Standards.
Subtitle: Supplementing exhibit of the Bureau of Standards at the Brazil Centennial exposition, Rio de Janeiro, Brazil, 1922-23.
By: By Warren E. Emley, United States Bureau of Standards.
Contributors: Emley, Warren Edwards, 1886-; Rio de Janeiro (Brazil). Exposi©ʻc©Þao do centenario do Brasil, 1922-1923. United State
Publisher: Govt. Print. Off.
Published: 1922
Place of publication: [Washington
Subjects: United States. National Bureau of Standards.