000			00314cam a22001331 4500
999			_c2069 _d2069
082			_a371 PER
100			_aPerkins,W.H
245	1	0	_aScience In School
260			_aLondon, _bButterworth's Scientific Publications, _c1958.
300			_aviii, 150 p.
650		0	_aScience
700	1		_aPerkins, W. H.,
942			_cBK