Use the registered short title

Warning²Federal courts, Illinois courts21st and 22nd editions

A treaty or intergovernmental-organization document is registered with a bracketed short title and later re-cited by a different name pulled from the same full citation, instead of the title the writer registered.¹

1. 1R. 21.17(a) Treaties and other international agreements; R. 21.17(c) United Nations and other intergovernmental organization materials. Tables: R. 4.2(b) “Hereinafter.”; R. 4.2(a) “Supra.”.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.