00413nam a2200145Ia 4500008004100000020001500041041000800056082001600064100005400080245004200134250000600176260004900182300001100231650002500242210716s1990    xx            000 0 und d  a0030324629  aeng  a001.42 ARYD  aAry, Donald;Jacobs, Lucy Cheser;Razavieh, Asghar.  aIntroduction to research in education  a4  aLondonbHolt, Rinehart and winston Incc1990  axi,536  aResearch Methodology