Luhmann observed :  radical theoretical encounters / 
edited by Anders La Cour, Copenhagen Business School, Denmark, and Andreas Philippopoulos-Mihalopoulos, University of Westminster, UK. 
 - x, 295 pages ;  23 cm 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781137015280  RM384.75 
<br/><br/><label>Subjects--Personal Names: </label><br/>Luhmann, Niklas, 1927-1998. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology.<br/>Social systems.