Light on a dark horse : an autobiography (1901-1935).

MLA

Campbell, Roy. Light On a Dark Horse : an Autobiography (1901-1935). London: Hollis & Carter, 1951.

APA

Campbell, R. (1951). Light on a dark horse : an autobiography (1901-1935). London: Hollis & Carter.

Chicago

Campbell, Roy Light On a Dark Horse: An Autobiography (1901-1935). London: Hollis & Carter, 1951.