Use an italic “on” before the page cited

Warning²Federal courts, Illinois courts22nd edition only

A comment is cited as the word “comment”, the commenter, a date-and-time parenthetical, and then an italic “on” joining it to the citation of the page it was left on.¹

1. 1R. 18.2.2(a) Author of relevant object.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.