Hart, H. L. A. (Herbert Lionel Adolphus), 1907- <br/><br/>
The concept of law / 
by H. L. A. Hart ; with a postscript edited by Penelope A. Bulloch and Joseph Raz 
 - 2nd ed 
 - Oxford ;  New York :  Clarendon Press ;  Oxford University Press,  1994 
 - xii, 315 p. ; 23 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0198761228 0198761236 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Jurisprudence<br/>Law--Philosophy