Use a source the Court publishes

Error²Federal courts, Illinois courts21st and 22nd editions

The Inter-American Court of Human Rights publishes its decisions in its own lettered series, its collected reports, or its own online releases; no other publisher's volumes count as one of them.¹

1. 1T3.7 Inter-American Court of Human Rights.
2. 2An error: the rule in note 1 allows one form, and this is not it.