The purpose of this guide is to introduce the researcher to the sources of international law and the basic print and electronic research tools available to find them.
Article 38 of the Statute of the International Court of Justice (ICJ) is generally considered to be the authoritative listing of the sources of international law. It lists them as the following:
The statute also list two "subsidiary means for the determination of rules of law." Although they are not primary sources of law, they can be cited to show evidence of international law. They are: