000 00291nam a2200109Ia 4500
008 160710s1923 xx 000 0 und d
100 _aBEDFORD ,C.W AND WINKELMANN ,H.A
245 _aSYSTEMATIC SURVEY OF RUBBER CHEMISTRY
260 _bCHEMICAL CATALOG
_c1923
300 _a385
942 _2ddc
_cB
999 _c6384
_d6384