000			00348nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a948323159
082			_a668
082			_b4 PLA
100			_aP.&.R.I
245		0	_aPlastics In Telecommunic
260			_aLondon
260			_bScience And technology P
260			_c1986
300			_aP10/6
999			_c37095 _d37095