00280nam a2200097Ia 4500008004100000082001600041100002500057245004200082260004300124300001500167190415s9999    xx            000 0 und d  a300.72 RES;  aOsborne, Harold W./s 0aResearch methods: issues and insights  aCaliforniabWadsworth Publishingc1971  axii, 472p.