00319nam a2200109Ia 4500008004100000022001800041040002500059082002000084100002300104245004300127260003900170240215s9999    xx            000 0 und d  a0-02-369242-1  aNORSU-DumcNORSU-Dum  a001.42/L51/1993  aCutanco, Arleen P. 0aPractical Research Planning and Design  bMacmillan Publishing Companyc1993