Columbia subject headings:
Aeronautics, Military.
Aeronautics--Law and legislation.
Air warfare.
Bombardment.
International Peace Conference (1st : 1899 : Hague, Netherlands)
International Peace Conference (2nd : 1907 : Hague, Netherlands)
War (International law)
Harvard subject headings:
Aeronautics, Military
Aeronautics--Law and legislation
Bombardment.
Bombing, Aerial.
International Peace Conference (1899 : Hague, Netherlands)
International Peace Conference (1st : 1899 : Hague, Netherlands)
International Peace Conference (2nd : 1907 : Hague, Netherlands)
War (International law)
Princeton subject headings:
Aeronautics, Military.
Aeronautics--Law and legislation.
Bombardment.
International Peace Conference (1899 : Hague, Netherlands)
International Peace Conference (2nd : 1907 : Hague, Netherlands)
War (International law)