Add the supplement's year

Warning²Federal courts, Illinois courts21st and 22nd editions

A pocket part or bound supplement of a book is named inside the parentheses with its own date, so a parenthetical that ends at “& Supp.” leaves the supplement undated.¹

1. 1R. 15.4(e) Supplements; R. 15.4(d) Supplements; R. 3.1(c) Supplements.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.