Using this guide
Navigate through this guide by clicking on the pertinent tab you can see above this box (below the main title of this guide).
Below are links to take you to other Bodleian libguides which may help you with your studies in this area.
Treaties as source of international law
Article 38(1) of the Statute of the International Court of Justice tells the court to decide cases before it by applying
"(a) international conventions, whether general or particular, establishing rules expressly recognised by the contesting States;
(b) international custom ....
(c) the general principles of law recognised by civilised nations
(d).... judicial decisions and the teachings of the most highly qualified ... as subsidiary means for the determination of the rules of law."
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The Sources of International Law by Call Number: Internat 500 T446b2ISBN: 0198841825Publication Date: 2nd edn 2019Holders of an Oxford SSO can also read this online via title link
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Vienna Convention on the Law of Treaties 1969Free resource. (Pdf make take time to download.)
Entered into force on 27 January 1980.
United Nations, Treaty Series, vol. 1155, p. 331 -
Vienna Convention on the Law of Treaties between States and International Organisations or Between International Organisations (1986)Free resource. (Pdf may take some time to download)
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UN Treaty HandbookFree resource. "This publication has been prepared by the Treaty Section of the Office of Legal Affairs as a guide to the Secretary-General's practice as a depositary of multilateral treaties and the Secretariat's practice in relation to the registration and publication functions."
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UN's AudioVisual Library Law of Treaties sectionFree resource
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ILC On treaties concluded between States and international organizations or between two or more international organizationsFree resource. From International Law Commission.
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UK Treaties Online (UKTO)Official website maintained by FCO: "provides an official record of the UK's treaty obligations under international law and is sourced by Treaty Section of the Foreign, Commonwealth & Development Office. UKTO gives access to information on over 14,000 treaties to which the UK is or has been a party with links to texts of command papers published in the UK Treaty Series from 1892."
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An Introduction to Sources for Treaty ResearchFree resource. By Mark Engsberg (2006) updated 2011 & 2016