The national Bureau of standards.
Series: Miscellaneous publication; no. 18; Miscellaneous publications (United States. Bureau of Standards) ;; no. 18.
Publisher: Govt. print. off.
Published: 1911
Place of publication: Washington
Language: eng
Number of pages: 24
Subjects: United States. National Bureau of Standards
Notes: At head of title: Department of commerce and labor. Bureau of standards. S.W. Stratton, director.