Add the volume or issue number

Error²Federal courts, Illinois courts21st and 22nd editions

A parallel citation to the Common Market Law Reports carries a number in front of the reporter; the service ran its volumes continuously through 1973 and by issue from 1974 on.¹

1. 1R. 21.5.2(b) Private services.
2. 2An error: the rule in note 1 allows one form, and this is not it.