Fletcher, George P. <br/><br/>
Defending humanity :  when force is justified and why / 
George P. Fletcher and Jens David Ohlin. 
 - 1st  ed. 
 - Oxford :  O. U. P.,  2008. 
 - xvi, 268  p. 
<br/><br/><label>ISBN: </label>0199757213 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>War.<br/>War--Causes.<br/>Intervention (International law)<br/>Preemptive attack (Military science)