Add the microform set's publisher

Warning²Federal courts, Illinois courts21st and 22nd editions

A microform set cited by its publisher's own fiche or reel numbering names the publisher in parentheses; the number means nothing without the service that assigned it.¹

1. 1R. 18.6(b) Microform collections containing original materials; R. 18.5.2 Microform Collections Containing Original Materials.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.