TY  - BOOK
AU  - Viezbicke,P.P.
TI  - NBS frequency and time broadest services: radio stations W.W.V, W.W.V.H, W.W.V.B and W.W.V.L 
U1  -  658.562 
PY  - 1971///
CY  - Washington, D. C.
PB  - United States Government Printing Office
KW  - Materials
KW  - Standards
KW  - Standards, Engineering
KW  - Specifications
ER  -