000			00369nam a2200145 4500
003			OSt
008			220602b |||||||| |||| 00| 0 eng d
082			_a540 _bLES
100			_aLessing, Lawrence P.
245			_aUnderstanding chemistry
260			_aLondon: _bA signet science library book, _c1959.
300			_a192p. _c17cm
650		0	_aChemistry
942			_2ddc _cLM
999			_c104396 _d104396