000			00274nam a2200133Ia 4500
654			_aMECH
100			_aNelkon.M.
250			_a1st Ed.
245			_aHeat.(1959).
260			_bBackie & Sons Ltd. _c1960
082			_bNEL _aPC-196
300			_a282p.
999			_c21594 _d21594
300			_c24 cm.
655			_aM-31
041			_aeng
546			_aText in English