000 00358pam a2200133a 44500
082 _aBTS
_bMONO 4981
100 _aBerreman,D W
245 1 _aCONVECTIVE GAS LIGHT GUIDES OR LEAN TRAINS FOR OPTICAL BEAM TRANSMISSION
260 _a
_b
_c1965
300 _a1965
500 _aBound With Bts Mono 4976-4980,4982-5000
964 _gCIRC
997 _aTR20074 C
999 _c403661
_d403661