Hague declarations of 1899 (IV,1) and 1907 (XIV) prohibiting the discharge of project and explosives from balloons 

 - Washington  The Endowment U.S.A.        1915 
 - 1-5p  cm. 
<br/><br/><label>Standard No.: </label>25,833 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z1:A35qN0, E5