Krenek, E. (1940). Studies in Counterpoint: Based on the twelve-tone technique / by Ernst Krenek. Schirmer.
Chicago-referens (17:e uppl.)Krenek, Ernst. Studies in Counterpoint: Based on the Twelve-tone Technique / by Ernst Krenek. New York: Schirmer, 1940.
MLA-referens (8:e uppl.)Krenek, Ernst. Studies in Counterpoint: Based on the Twelve-tone Technique / by Ernst Krenek. Schirmer, 1940.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.