Add the microform publisher

Warning²Federal courts, Illinois courts21st and 22nd editions

A microform citation names the publisher of the microform series in parentheses, abbreviated the way institutional names are abbreviated elsewhere.¹

1. 1R. 18.6(a) Microform collections reproducing preexisting materials; R. 18.5.1 Microform Collections Reproducing Preexisting Materials.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.