IMDB : 39 Steps, The (1935)
- Full cast and crew for the film, and other information from the Internet Movie Database.
- http://us.imdb.com/title/tt0026029/

Britmovie - The 39 Steps
- Cast information, trailer, and review.
- http://www.britmovie.co.uk/directors/a_hitchcock/filmography/018.html

Scotland the Movie Location Guide - The 39 Steps
- Scottish filming locations for The 39 Steps
- http://www.scotlandthemovie.com/movies/fsteps1.html

Greatest Films: The Thirty-Nine Steps
- Detailed review, synopsis and discussion of thematic elements in the film
- http://www.filmsite.org/thirt.html