| 000 | 00515nam a2200157Ia 4500 | ||
|---|---|---|---|
| 001 | 300273 | ||
| 005 | 20160527183802.0 | ||
| 074 | _a0244-G (MF) | ||
| 086 | 0 | _aC 13.3/4: | |
| 245 | 0 | 0 | _aTime & frequency bulletin |
| 260 |
_aBoulder, CO _bNational Bureau of Standards |
||
| 500 | _aDescription based on: No. 341 (Apr. 1986); title from cover | ||
| 650 | 0 |
_aTime-signals _9283907 _2Local |
|
| 650 | 0 |
_aRadio frequency _xMeasurement _9267232 _2Local |
|
| 710 | 0 | 0 |
_aUnited States _bNational Bureau of Standards. _9182913 _2Local |
| 999 |
_c219157 _d219157 |
||