Italicize the signal

Error²Law reviews21st and 22nd editions

“See”, “see also”, “cf.” and “but see” are italic where they introduce a citation sentence or clause; a signal word serving as the verb of an ordinary sentence is not.¹

1. 1R. 2.1(d) Introductory signals; R. 1.2 Introductory Signals; R. 7(b) Foreign words and phrases.
2. 2An error: the rule in note 1 allows one form, and this is not it.