| LDR | 01076cam a2200277I 4500 | ||
| 001 | 100120242 | ||
| 003 | MiAaHDL | ||
| 005 | 20131130000000.0 | ||
| 006 | m d | ||
| 007 | cr bn ---auaua | ||
| 008 | 741017s1972 cou f000 0 eng d | ||
| 035 | ⊔ | ⊔ | ‡asdr-pst.a7400825 |
| 035 | ⊔ | ⊔ | ‡a(OCoLC)1043191 |
| 040 | ⊔ | ⊔ | ‡aNYG ‡cNYG ‡dOCL ‡dOCLCQ ‡dCUS |
| 050 | 1 | 4 | ‡aTK1 ‡b.I59 v.28 |
| 082 | 0 | 4 | ‡a621.38417 ‡bD263, 74-5826 |
| 086 | 0 | ⊔ | ‡aC 1.60:28 |
| 100 | 1 | ⊔ | ‡aDavis, R. M. |
| 245 | 1 | 4 | ‡aThe occurrence of spread F and its effect on HF propagation / ‡cR.M. Davis, Jr. |
| 260 | ⊔ | ⊔ | ‡aBoulder, Colo. : ‡bInstitute for Telecommunication Sciences, ‡c1972. |
| 300 | ⊔ | ⊔ | ‡av, 136 p. : ‡bill. ; ‡c27 cm. |
| 490 | 0 | ⊔ | ‡aUnited States. Dept. of Commerce. Office of Telecommunications. Telecommunications research and engineering report ; ‡v28 |
| 500 | ⊔ | ⊔ | ‡a"OT/TRER 28" |
| 500 | ⊔ | ⊔ | ‡a"March 1972" |
| 504 | ⊔ | ⊔ | ‡aIncludes bibliography. |
| 538 | ⊔ | ⊔ | ‡aMode of access: Internet. |
| 650 | ⊔ | 0 | ‡aRadio frequency. |
| 710 | 2 | ⊔ | ‡aInstitute for Telecommunication Sciences. |
| CID | ⊔ | ⊔ | ‡a100120242 |
| DAT | 0 | ⊔ | ‡a20110929111108.0 ‡b20131130000000.0 |
| DAT | 1 | ⊔ | ‡a20140129090552.0 ‡b2024-03-16T18:01:06Z |
| CAT | ⊔ | ⊔ | ‡aSDR-PST ‡dUNKNOWN ‡lloader.pl-003-009 |
| FMT | ⊔ | ⊔ | ‡aBK |
| HOL | ⊔ | ⊔ | ‡0sdr-pst.a7400825 ‡apst ‡bSDR ‡cPST ‡ppst.000070963748 ‡sPST ‡z1.60:28 ‡1a7400825 |
| 974 | ⊔ | ⊔ | ‡bPST ‡cPST ‡d20240316 ‡sgoogle ‡upst.000070963748 ‡z1.60:28 ‡y1972 ‡rpd ‡qbib ‡tUS fed doc |