WWW IMDB, 06-10-2010 (Alex North; b. 1910, Chester, Pennsylvania, USA, d. 1991, Los Angeles, California, USA; birth name, Isadore Soifer; alternate names, Mr. North; composer, musical director, music adaptor, conductor)

¿Quién teme a Virginia Woolf? [vídeo], 1995 carát. (Música, Alex North)

Film index international [CD-ROM], British Film Institute, 1995

Halliwell's film guide, de Leslie Halliwell, 1994

The Guinnes encyclopedia of popular music (North, Alex; n. 1910, Chester, Pennsylvania, m. 1991, Pacific Palisades, California)