Henderson, D. V. (1984). Dragons can be defeated: A complete record of the George Medalʻs progress 1940-1983. Spink.
Chicago-referens (17:e uppl.)Henderson, Donald Victor. Dragons Can Be Defeated: A Complete Record of the George Medalʻs Progress 1940-1983. [London]: Spink, 1984.
MLA-referens (8:e uppl.)Henderson, Donald Victor. Dragons Can Be Defeated: A Complete Record of the George Medalʻs Progress 1940-1983. Spink, 1984.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.