000 00309nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.381541 S698
100 _aSONDE,B.S
245 0 _aTRANSDUCERS AND DISPLAY SYSTEM
260 _aNEW DELHI
_bTata McGraw-Hill
_c1977
300 _a24X16
942 _cBK
_2DDC
999 _c17305
_d17305