Children's Books Spring 1974
https://www.nytimes.com/1974/05/05/archives/childrens-books-spring-1974-the-chocolate-war.html
This is a thoughtful and insightful review of the novel from the New York Times the year it came out.
Obituary: Robert Cormier
https://www.theguardian.com/news/2000/nov/06/guardianobituaries.books
This is Robert Cormier's obituary in The Guardian, which details his many accomplishments in life, particularly related to connecting to young people through his groundbreaking writing.