000 00313nam a2200121Ia 4500
008 160710s1972 xx 000 0 und d
082 _a668.423 BIL
100 _aBILLMEYER ,F.W
245 _aSYNTHETIC POLYMERS BUILDING THE GAINST MOLECULE
260 _bDOUBLE DAY & CO.
_c1972
300 _a182
942 _2ddc
_cB
999 _c37034
_d37034