Seems like Crucial Response Records gets some coverage lately, not that we were interviewed in Trust fanzine a while ago, a book by Tony Rettman came out recently which features some Crucial Response bands in the european chapter. "Straight Edge: A Clear-Headed Hardcore Punk History" covers as the title says the history of straight edge. Tony Rettman is responsible for Why Be Something That You're Not: Detroit Hardcore 1979-1985 and NYHC: New York Hardcore 1980-1990 as well. All books are worth checking out.