000 00349pam a2200157a 44500
008 230515b1973 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGLISH
082 _aNULL
100 _aAIT
245 _aSYSTEMS POSIONS ON.1
250 _a1973
260 _aDELHI
_bA JOHN WILEY AND SONS
_c1973
300 _a160-PB
650 _aNULL
999 _c661493
_d661493