000 00280nam a2200121Ia 4500
008 221001s1969 xx 000 0 eng d
082 _a160 GAU
100 _aGautam, J. K.
245 0 _aScientific method
260 _aDelhi
_bR. Chand
_c1969
300 _aiv, 227p.
942 _2ddc
_cBK
999 _c556
_d556