Use "IMF" for the fund survey's title

Error²Federal courts, Illinois courts21st and 22nd editions

A periodical is abbreviated with the abbreviation its own printed title carries, rather than the word-by-word expansion the abbreviation tables would otherwise build.¹

1. 1T13 Institutional Names in Periodical Titles; R. 16.4 Consecutively Paginated Journals.
2. 2An error: the rule in note 1 allows one form, and this is not it.