Burley, W. J. (1985). Wycliffe and the four jacks. Published for the Crime Club by Doubleday.
Lua i Stíl Chicago (17ú heag.)Burley, W. J. Wycliffe and the Four Jacks. Garden City, NY: Published for the Crime Club by Doubleday, 1985.
Lua MLA (9ú heag.)Burley, W. J. Wycliffe and the Four Jacks. Published for the Crime Club by Doubleday, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.