00385nam a2200145Ia 4500008004100000084001100041100002100052245004600073250002000119260001900139260000900158260002200167300001500189500003500204180424s9999    xx            000 0 und d  a519 C7  a"Cohen, Lillian" 0aStatistical Methods for Social Scientists  a\\195400ENGGPCX  aPrentice Hall   b1954  cEnglewood Cliffs   aviii+181 p  aincludes index and biblioraphy