000			00387nam a22001457a 4500
003			NIELib
005			20250731135035.0
008			250731b |||||||| |||| 00| 0 eng d
082			_a504 _bESS
245			_aEssays In Science
260			_aNewYork: _bNational council educational research and training, _c1963.
300			_a66p.; _c21 cm
650		0	_aNatural Science
942			_2ddc _cLM
999			_c147930 _d147930