000 00421nam a22001577a 4500
008 230324b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 681.3.066DOS
_bM9
100 _aHyman Michael I
_94822
245 _aAdvanced Dos
250 _a3rd ed.
260 _aNew Delhi:
_bBPB Publications,
_c1989
300 _a363p.
650 _aDOS
942 _2udc
_cBK
999 _c14017
_d14017