000 00274nam a2200121Ia 4500
008 160710s1955 xx 000 0 und d
082 _a540 HES
100 _aHESS,FRED C.
245 _aCHEMISTRY MADE SIMPLE
260 _bW.H. ALLEN
_c1955
300 _a80
942 _2ddc
_cB
999 _c30881
_d30881