000 00352pam a2200145a 44500
082 _aBTS
_bMONO 2483
100 _aArnold,W O
245 1 _aSYSTEM PLAN FOR AIR TRAFFIC CONTROL
260 _a
_b
_c1955
300 _a9
500 _aBound With Bts Mono 2455-82.Lack No.2458 & 2459.
700 _aHoefle,R R
964 _gCIRC
997 _aTR19843 C
999 _c402925
_d402925