Life. London and Boston: Faber, 1986. ISBN 0-571-13791-1. Page 404. "E. C. Segar", in Walker, Brian. The Comics: The Complete Collection. New York: Abrams
2001: A 21 [1 September 2023]. (原始内容存档于2023-09-01). 含有連結內容需訂閱查看的頁面 (link) Segar, Rufus. Josh Kirby: The man who mapped out Discworld and other fantasy universes