000 00314nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a678.4(047)(73)
_bARC
245 0 _aArctic rubber: United states petroleum and chemical research department progress report. 1950-1952
260 _aUnited states
_c1952
942 _cBK
999 _c34336
_d34336