000 00284nam a2200121Ia 4500
008 220201s1968 xx 000 0 eng d
082 _a540
100 _aGilpin, Noel
245 0 _aGram atoms to equations
260 _bLondon: Heinman education
_c1968
300 _a22
942 _2ddc
999 _c73852
_d73852