000 00276pam a2200121 a 4500
020 _c
041 _aeng
100 _aM.Gopal.
245 _aDigital Control Enginnearing
_hTextual Documents
260 _aNew Delhi
_bWiley Publication
_c1989
300 _a535p.
930 _a16150
999 _c93050
_d93050