Social Systems:  writing science/ 
Luhmann, Niklas;traslated by John Bednarz,with  Dirk Beacker;forward byEva M. Knodt. 
 - Frankfurt:  Stanford,  c1995. 
 - xxxvi:627p.  includes index  26cm 
<br/><br/><label>ISBN: </label>9780804726250 
<br/><br/><label>Subjects--Personal Names: </label>--Social systems--Autopoiesis
<br/><br/><label>Dewey Class. No.: </label>301WRI