000 | 003380000a22001450004500 | ||
---|---|---|---|
245 | _aModulation theory | ||
100 | _aBlack, H.S. | ||
260 |
_aNew York _bVan Nostrand _c1953 |
||
300 | _a363 p. | ||
440 | _aBell Telephone Laboratories series | ||
500 | _aplates; diagrams | ||
080 |
_a621.376 _bB6 |
||
041 | _aEN | ||
942 | _cBK | ||
999 |
_c94673 _d94673 |