000			00300nam a22001211 4500
082			_a607 _bFRE _cL-6, P-15
100	1		_aFreedman, Paul.
245	1	4	_aThe principles of scientific research.
260			_aLondon _bMacdonald & Co _c1949
300			_aix, 228 p2 _bill.
650		2	_aResearch.
942			_cBK
999			_c4922 _d4922