Add an attribution parenthetical

Warning²Federal courts, Illinois courts21st and 22nd editions

A quotation that keeps its second level of marks is itself quoting a further source, so its own citation names that source in a “quoting” or “citing” parenthetical; only the levels beyond the first may go unnamed.¹

1. 1R. 5.2(f) Internal quotation marks. Tables: R. 5.2(f)(ii) Internal quotation marks; R. 5.2(f)(i) Internal quotation marks; R. 10.6.3 Quoting/Citing Parentheticals in Case Citations.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.