Use “U.N.” with periods

Error²Federal courts, Illinois courts21st and 22nd editions

A United Nations document element written “UN Doc.”, the organization’s own periodless house style, where a citation prints “U.N. Doc.” with periods.¹

1. 1R. 21.7.4(c) United Nations document symbol; R. 21.7.1 Verbatim and Summary Records.
2. 2An error: the rule in note 1 allows one form, and this is not it.