Columbia subject headings:
Belligerents and non-combatants.
Grotius, Hugo, 1583-1645. De jure belli ac pacis libri tres.
Ingratitude.
Prices.
Prisoners of war.
State, The.
Harvard subject headings:
Belligerents and non-combatants.
Grotius, Hugo, 1583-1645. De jure belli ac pacis libri tres.
Ingratitude.
Prices
Prisoners of war
State, The
Princeton subject headings: