Luhmann, Niklas,  1927-1998. <br/><br/>
Essays on self-reference / 
Niklas Luhmann. 
 - New York :  Columbia University Press,  1990. 
 - 245 p. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0231063687 9780231063685 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social systems.<br/>Autopoiesis.<br/>Communication--Social aspects.
<br/><br/><label>LC Class. No.: </label>HM 131  / L951e 1990 
<br/><br/><label>Dewey Class. No.: </label>302.2