000 00449 a2200253 4500
001 1003304
020 _a1
041 _aeng
080 _a678.5 Uni
245 _aPlastics
250 _a
260 _aLondon
260 _bHMSO,
260 _c1952
300 _a442 p.
300 _c23 cm
490 _a
100 _aUnited Kingdom. Ministry of Supply
700 _a
650 _a
650 _aPlastics
942 _cBK
942 _2UDC
999 _c13349
_d13349