000 00316nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a620.3
_bTHY
100 _aThyagarajan,G
245 0 _aGolden treasury of science and technology
260 _adelhi
_bInformation Directorate
_c1992
300 _a360
942 _2ddc
999 _c34361
_d34361