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

 - Oxford  English Language Book Society  1968 
 - p. 263P 
<br/><br/><label>Subjects--Index Terms: </label>Law;Soverign;Leagal System;Morality;Internationa Law 
<br/><br/><label>Dewey Class. No.: </label>340