000 00321pam a2200133a 44500
082 _aBTS
_bMONO 1883
100 _aSlonczewski,T
245 1 _aSEREVO SYSTEM FOR HETERODYNE OSCILLATORS
260 _a
_b
_c1951
300 _a3
500 _aBound With Bts Mono 1881-82,1884-99.
964 _gCIRC
997 _aTR19730 C
999 _c402033
_d402033