Jones, Nigel. "May Day: The Premiership of Lord Halifax"
Published: In Hitler Triumphant: Alternate Decisions of World War II (ed. Peter G. Tsouras), q.v.
Original in: English.
Translation: Spanish by Diana Delgado as "Primero de mayo: May Day, May Day!", in Hitler triunfante. Historia alternativa de la Segunda Guerra Mundial, (ed. Peter G. Tsouras), q.v.