000 00327nam a2200121Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
040 _aET
100 _aBiswas Subhashish
245 0 _aStudy of Queues with Special Reference to Waiting Time
260 _bExcellent Books EDUCATION Pub.
_aDelhi
500 _a57443
942 _cBK
999 _c63406
_d63406