Replace "and" with an ampersand

Error²Federal courts, Illinois courts21st and 22nd editions

Two authors of a book or an article are joined by an ampersand rather than the word “and”; a relationship the title page itself sets, such as “with”, is kept as written.¹

1. 1R. 15.1(a) Two or three authors; R. 16.2 Author; B15.1 Full Citation. Tables: T6 Case Names and Institutional Authors in Citations; R. 15.1(e) Abbreviations; R. 15.1(d) Abbreviations.
2. 2An error: the rule in note 1 allows one form, and this is not it.