Deletion of Regional Theatre: the Revolutionary Stage

Comment: Look at Google Books, there's at least a few journal articles that review it, loads of references to it as a significant contribution, and the 2019 book ''America in the Round: Capital, Race, and Nation at Washington D.C.'s Arena Stage'' calls it "the central text of the field" of scholarship on US regional theatre. Looking at context it's enough to pass 
Stance: keep
Cited policy: Wikipedia:Notability (WP:NBOOK)