000			00338nam a2200133Ia 4500
008			160306s9999 xx 000 0 und d
041			_aENG
080			_a5.001.5 _bFRE-P
100			_aFreedman, Paul
245			_aPrinciples of scientific research
260			_c1960 _aOxford _bPergamon Press
300			_a xvii, 227p.
942			_cBK _2udc
999			_c34932 _d34932