Units used to express the wave lengths of electromagnetic waves
By: by Henry D. Hubbard
Series: U.S. Bureau of standards. Miscellaneous publication -- no. 117; Miscellaneous publications (United States. Bureau of Standards) -- no. 117
Publisher: U.S. Govt. print. off.
Published: 1930
Place of publication: Washington
Language: eng
Subjects: Electric waves; Radio; Spectrum analysis
Notes: November 24, 1930

At head of title : U.S. Department of commerce. R.P. Lamont, secretary. Bureau of standards. George K. Burgess, director ..