NBS time and frequency broadcast service
Subtitle: radio stations WWV, WWVH, WWVB, WWVL.
Series: Publication - National Bureau of Standards -- TFS-601.; NBS-TFS -- 601.
Publisher: Dept. of Commerce, National Bureau of Standards, Time and Frequency Division, Time & Frequency Services Section
Published: 1976
Place of publication: Boulder, Colo
Language: eng
Number of pages: 10
Notes: January 1, 1976.