00337nam a2200109Ia 4500008004100000040003800041100001500079245006000094260003500154300001500189653002300204211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aBurch, W R 0aSocial behavior, natural resources, and the environment  bHarper and RowaNew Yorkc1972  ax, 374p p.  aSocial interaction