Hart, H.L.A. <br/><br/>
The concept of law 

 - Oxford  The English Language Book Society  1979 
 - viii, 262 p. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Law
<br/><br/><label>Dewey Class. No.: </label>340  / HAR