000 00461 a2200253 4500
001 119489
020 _a1
041 _aeng
080 _a678.5 Bar
245 _aModern plastics
250 _a2nd rev. ed
260 _aLondon
260 _bChapman and Hall,
260 _c1949
300 _axx789 p.
300 _c20.5 cm
490 _a
100 _aBarron, Harry
700 _a
650 _a
650 _aPlastics
942 _cBK
942 _2UDC
999 _c57523
_d57523