000 00259nam a2200097 4500
020 _a9781668432839
245 _aENCYCLOPEDIA OF INFORMATION SCIENCE AND TECHNOLOGY
250 _aFIFTH
260 _aINDIA
_bIGI GLOBAL PUBLISHER OF TIMELY KNOWLEDGE
_c2021
942 _cBK
999 _c557
_d557