John Buchan (2016). “THE THIRTY-NINE STEPS & Other Adventure Stories (7 Action-Packed Titles in One Volume): Gripping Tales of Dangerous Exploits, Mysteries & Espionage Intrigue: The Thirty-Nine Steps, Midwinter, Prester John, A Prince of the Captivity, Salute to Adventurers, The Path of the King...”, p.88, e-artnow