http://es.wikipedia.org/wiki/Harry_O._Hoyt

Internet movie database, 26-03-2003---(Harry O. Hoyt; b. 1885, Minneapolis, Minnesota, d. 1961, Woodland Hills, California; sometimes credited as Harry Hoyt; writer, director)

El mundo perdido [vídeo], 1995---carát. (Director, Harry Hoyt)

Halliwell's film guide, de Leslie Halliwell, 1994---