00492nam a2200169Ia 4500008004100000020001500041082001700056100002000073245008400093260003800177300000800215650002000223650001400243653001400257653002800271653002300299170901s1973    xx            000 0 und d  a0471223565  a301.15bD82P  aDuck, Steven W. 0aPersonal Relationships and Personal ConstructsbA Study of Friendship Formation  aLondonbJohn Wiley and Sonsc1973  a170  aSocial sciences  aSociology  aFreidship  aInterpersonal relations  aSocial interaction