000			00331nam a22001457a 4500
020			_a0340038063
050			_aMED TH148 _bD6
100			_aDoherty, ch. H
245			_aScience on the building site
250			_a2nd ed.
260			_aLondon _bBrockhampton press _c1971
300			_a96p. _bill.
650			_aScience
942			_cBK
999			_c14651 _d14651