000 002990000a22001210004500
245 _aElectronic devices and their applications
100 _aDas, P.N.
260 _aNew Delhi
_bOxford & IBH Publishing
_c1972
300 _a412 p. : ill.
080 _a621.38
_bD3
041 _aEN
942 _cBK
999 _c103039
_d103039