APA (7th ed.) Citation

Nicotra, T., Brandeis, I., & Kahn, H. D. (1929). Arturo Toscanini. A.A. Knopf.

Chicago Style (17th ed.) Citation

Nicotra, Tobia, Irma Brandeis, and H. D. Kahn. Arturo Toscanini. New York: A.A. Knopf, 1929.

MLA (9th ed.) Citation

Nicotra, Tobia, et al. Arturo Toscanini. A.A. Knopf, 1929.