000 00275nam a2200097Ia 4500
008 190428s9999||||xx |||||||||||||| ||und||
100 _aDas, P.N.
_912601
245 _aElectronic devices and their applications
250 _b1972. 412
260 _bOxford and IBH. Calcutta, India
999 _c12469
_d12469