Ennulat, E. M. (1991). Arnold Schoenberg correspondence: A collection of translated and annotated letters exhanges with Guido Adler, Pablo Casals, Emanuel Feuermann and Olin Downes. The Scarecrow.
Chicago-Zitierstil (17. Ausg.)Ennulat, Egbert M. Arnold Schoenberg Correspondence: A Collection of Translated and Annotated Letters Exhanges with Guido Adler, Pablo Casals, Emanuel Feuermann and Olin Downes. Lanham: The Scarecrow, 1991.
MLA-Zitierstil (9. Ausg.)Ennulat, Egbert M. Arnold Schoenberg Correspondence: A Collection of Translated and Annotated Letters Exhanges with Guido Adler, Pablo Casals, Emanuel Feuermann and Olin Downes. The Scarecrow, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.